
Chapter 1 Introduction: Understand the Underlying Logic to Cope with a Constantly Changing World
This world changes too fast—technology iterates, industries reshuffle, ideas replace one another. We’re always chasing the next trend and learning new techniques, yet we often lose our way amid the complexity: Why do we put in effort but get nothing back? Why do our conversations always slide into pointless arguments? Why do choices that seem right end up leading to a dead end?
Business consultant Liu Run gives the answer in The Underlying Logic: “What truly lets you calmly deal with ten thousand changes is not fragmented techniques but those underlying logics that never change.” This core idea is precisely the key to cracking the puzzle of life and growth.
The so-called underlying logic is the unchanging core law behind things—“the sameness within difference, the constancy behind change.” In the book Liu Run proposes a concise yet powerful formula: underlying logic + environmental variables = methodology.
Methodology ages and goes out of date with the times, but underlying logic has lasting vitality. It helps us dynamically derive solutions suited to ourselves in unfamiliar environments, rather than mechanically memorizing “practical tips” and blindly following the crowd. This is exactly where the value of this book lies: it doesn’t provide standard answers to every problem, but it gives us a thinking framework for finding answers, so that in a complex world we can always grasp the essence of a problem.
Chapter 2 Understanding the Underlying Logic: First Distinguish Fact, Opinion, Position, and Belief
To understand the underlying logic, the first thing to learn is to distinguish fact, opinion, position, and belief—the first step to avoiding futile arguments and staying clear-headed. These four concepts progress layer by layer with clear boundaries, yet we often confuse them and end up trapped in meaningless internal friction.
A fact is an objective existence independent of human judgment, either true or false and verifiable—for example, “the temperature today is 30°C.” An opinion is a subjective interpretation of a fact, with no absolute right or wrong, depending only on personal cognition—for example, “it’s very hot today.” A position is an opinion determined by one’s place and interests—“where your butt sits decides what your head thinks”—the core being that one fights only over winning and losing, not right and wrong. A belief, meanwhile, is a fully self-consistent logical system that cannot be falsified and needs no argument.
In life, too many conflicts stem from our confusing these four levels: some argue over the opinion “it’s very hot today” as though it were a fact, while others impose their own position on others as truth. Only by distinguishing the boundaries can we respect differences in communication, stay rational amid disagreement, and focus our energy on things that truly matter.
Chapter 3 Seeing the Essence: Jump Out of Appearance and Master the Core Method of Problem-Solving
Only by understanding the underlying logic can we jump out of the trap of appearances and gain the ability to see the essence. The stumbling block on many people’s path of growth is precisely the “survivorship bias” that Liu Run mentions in the book—we see only the success stories and the planes that made it back, while ignoring the failed attempts and the wrecks that were shot down, blindly copying so-called “successful experience,” and end up going in the opposite direction.
True wisdom is learning to view problems with the method of “hypothesis—verification—conclusion—adjustment”: don’t draw conclusions from experience, don’t be kidnapped by your position, and dissect problems on the merits of the matter itself.
The most typical example is how Microsoft solved the problem of poor supplier service: it neither imposed severe penalties nor increased manpower for inspection, but instead introduced a competition mechanism that changed the relationship between Microsoft and its suppliers, letting competition replace supervision and solving the problem at its root. This is the power of seeing the essence: ordinary people change the result, excellent people change the cause, and the top-tier excellent change the system.
Chapter 4 The Practice of Underlying Logic: The Path of Personal Growth and Social Collaboration
4.1 Personal Growth: Identify the Business Model of Your Life
Understanding the underlying logic also lets us find a clear direction forward in personal growth. Liu Run’s “business model of life = ability × efficiency × leverage” provides a clear path for our growth, and none of the three core elements is dispensable.
Ability is the foundation, and the most core ability is the ability to acquire abilities, which requires us to stay diligent, practice deliberately, and accumulate confidence through continuous learning. Efficiency is the key: learn to choose, master methods, and make good use of tools, so that limited time is spent where it matters most, achieving the effect of “one hour equals three.” Leverage is the amplifier: teams, products, capital, and influence are all tools for amplifying our value—but the premise is a strong core of ability, otherwise leverage only accelerates failure.
At the same time, we should understand that connections aren’t the people who can help us but the people we can help. Only by actively creating value can we build genuine ties and achieve mutual benefit.
4.2 Social Collaboration: Grasp the Core Logic of Profit and Wealth
In social collaboration, the underlying logic likewise plays a key role. Liu Run tells us that profit comes from the absence of competition, from the advantage brought by innovation—efforts that can be easily copied by others can ultimately only earn a “social wage”; only by building a moat through innovation can one have true profit.
The core of wealth distribution lies in scarcity—whoever controls scarce resources has the power to distribute wealth. This suggests that rather than burning energy in homogeneous competition, we should focus on increasing our own scarcity, cultivating our field deeply, and becoming irreplaceable.
In addition, we must recognize the essence of the “obedience test.” True leadership comes from followers won over from within, not from behavioral submission. Rather than spending energy catering to others, focus on improving your own abilities and win respect through value.
Chapter 5 Rational Reflection: Rebutting the One-Sided Views in the Book on “Growth and Daily Routine”
It’s worth noting that some views in the book are debatable, especially the discussion of “growth and daily routine,” which easily falls into cognitive pitfalls and even conveys the one-sided logic that “if you want to grow, you have to work 996.”
Liu Run once described a “711-style” routine: waking up at 7 sharp, exercising, reading, attending events, giving speeches, and only resting at 23:00, calling this mechanically repeated state “the beauty of regularity” and “a fun way of life,” even implying that “one’s attitude toward work (that is, high-intensity commitment) is the dividing line between excellence and mediocrity.” We can rebut this view on three levels.
First, the core of growth is efficiency and value creation, not the piling up of time. A 996-style high-intensity routine is essentially substituting time consumption for efficient growth; long-term mechanically repeated labor not only overdrafts the body and energy but also kills creativity—running counter to the original intention of “creating value.”
Second, a regular life is worth advocating, but “mechanical and dull” has nothing to do with “fun.” Truly sustainable growth is active improvement built on a balance of work and rest, not passively sinking into meaningless time consumption. The dividing line between excellence and mediocrity is never “whether you work 996,” but whether you can achieve the iteration of ability and the elevation of value within limited time, whether you can balance work and life, gain a sense of achievement from creating rather than being self-moved by exhaustion.
Third, everyone’s rhythm of growth differs, and the suitable routine and growth style vary greatly. Enshrining the “711-style” routine as the benchmark of excellence is essentially a one-size-fits-all value imposition that ignores individual differences and misreads the true meaning of “work is creation, not consumption”—creation presupposes abundant energy and clear thinking, not the length of time bought by overdrafting the body.
Chapter 6 Core Thinking Models: Building a “Thinking Operating System” to Cope with the World
Setting aside the one-sided views, the book also contains many highly illuminating thinking models that together form our “thinking operating system” for coping with the world, helping us be more rational in decisions, calmer in growth, and more efficient in collaboration.
The calculus mindset lets us view problems with a dynamic eye, understanding that the accumulation of effort takes time and that we shouldn’t rush for quick results. The probabilistic mindset lets us acknowledge the existence of luck, learn to go with the flow, and repeatedly do the right things to raise the probability of success. The axiom system lets us establish underlying principles and guide our decisions and behavior with consistent standards.
Chapter 7 Conclusion: With Underlying Logic, Fulfill the Promise of Growth
Liu Run says: “A person who can see through the essence in half a second, and a person who can’t see it clearly in a lifetime, are destined for utterly different fates.” The appearances of this world change in a thousand ways, but the underlying logic never changes.
We need not chase every trend, nor memorize every technique; we need only grasp those unchanging core laws and cultivate our thinking ability, and we can maintain our composure in a complex and ever-changing world.
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