I would rather have a first-rate management team running a second-rate business than a second-rate management team running a first-rate business. The business will eventually reflect the quality of the people running it—for better or worse.

Leverage is the only way a smart person can go broke. You do smart things, you eventually get very rich. If you do smart things and use leverage and one bad thing happens—it all goes to zero.

The market does not know the cost of your mortgage, your children's tuition, or your retirement date. It will not accommodate your needs. You must accommodate it — or suffer the consequences of pretending otherwise.

The bank with the best assets doesn't always win. The bank that survives is the one that doesn't make the fatal mistake. In investing, the one who loses least often wins most.

The sign of a truly great business is one where the management can point to having made several decisions that were obviously wrong at the time — and survived them. Durability is not about being right; it's about being able to be wrong without dying.

Mimicking the herd invites regression to the mean. The problem is not just that everyone owns the same securities; it's that everyone has internalized the same reasons for owning them, and will therefore sell at the same time for the same reasons.

Capitalism is a system for generating testable hypotheses about value. Most hypotheses fail. The error isn't in failing — it's in refusing to run the experiment cheaply enough that failure remains survivable.

The best time to buy a house is always five years ago. The best time to start a company is always five years ago. The best time to invest is always five years ago. Waiting for certainty is just a sophisticated way of opting out.

Most investors think risk-taking is the path to wealth. It isn't. Wealth is built by surviving long enough for compounding to work — and surviving means avoiding the risks that can knock you out of the game permanently. The goal isn't maximum return; it's maximum duration.

The biggest mistake investors make is to believe that what happened in the recent past is likely to persist. They assume that something that was a good investment in the recent past is still a good investment. Typically, high past returns simply mean that an asset has become more expensive and is a poorer, not better, investment.

Invest in a business any fool can run, because someday a fool will. If it requires a genius to run it, it's not going to work out well for the shareholder.

The worst investments I've seen are not the ones made in bad businesses. They are the ones made in good businesses at bad prices, by people who confused the quality of the asset with the quality of the investment.

The market can stay irrational longer than you can stay solvent, but the truly dangerous corollary is that you can be right about the business and still go broke because you were wrong about the timing. Patience without a balance sheet to survive on is just wishful thinking.

The single greatest edge an investor can have is a long-term orientation that makes you a natural seller to institutions that are forced to sell into panic. Most of your advantage in investing comes not from being smarter, but from having a longer time horizon than someone who structurally cannot.

Most people think diversification is about owning many things. It's actually about owning things that are wrong at different times and for different reasons. The goal isn't to avoid being wrong — it's to ensure that being wrong never kills you.

The biggest investing errors come not from factors that are informational or analytical, but from those that are psychological. Investors who are right for the wrong reasons are dangerous to themselves and their portfolios, because being right for the wrong reasons produces no dependable edge.

It is not the going out of port, but the coming in, that determines the success of a voyage. And yet we judge a life by its disasters, not by the quiet harbors it never left.

Risk means more things can happen than will happen. The gap between those two things is where most investment mistakes live — people confuse a good outcome with a good decision, and a bad outcome with a bad decision.

Leverage is the only way a smart person can go broke. It's also the only way a person of modest means can become wealthy quickly — which is why it's so seductive and so dangerous. The solution is simple but not easy: never let a temporary setback become a permanent one.

Mimicking the herd invites regression to the mean. The problem is not just that you end up average — it's that you've taken on all the risk of being wrong while surrendering any chance of being interestingly right. Consensus is the enemy of asymmetric returns.

You only have to be right a few times in your life, as long as you don't make too many big mistakes in between. The asymmetry between gains and losses means that avoiding catastrophe is more important than scoring victories.

The market is brutally efficient at correcting overconfidence, but almost infinitely patient in tolerating underperformance disguised as prudence. The real risk most institutions face is not that they will lose money, but that they will fail to make it — and never be called to account for that failure.

Mimicking the herd invites regression to the mean. The problem is that most investors feel safest when they are most in danger — when asset prices are high and everyone agrees the future is bright. Safety, paradoxically, is found in the places that make you most uncomfortable.

The investor who says 'this time is different' when in fact it's virtually a repeat of an earlier situation has uttered among the four most costly words in the annals of investing. But the opposite error is equally dangerous: the investor who can't distinguish a genuine structural change from a cyclical fluctuation will systematically misprice both.

The correct lesson to learn from surprises is that the world is surprising. Not that we should use past surprises to predict future surprises, but that surprise itself is the permanent condition. The error is assuming that because something hasn't happened, it can't.

The time to buy is when there's blood in the streets, even if the blood is your own.

Mimicking the herd invites regression to the mean. You don't get rich by buying what everyone else is buying at the price everyone else is paying. The excess return, if there is one, goes to those who are early and right — and being early often looks, for a time, indistinguishable from being wrong.

It is not the neutrality of stone that we should seek, but the engagement of fire — which warms and illuminates and also, if we are careless, burns. Safety, for one who truly thinks, is the beginning of death.

The trick is to make your mistakes non-fatal. You don't need to be right all the time. You just need to survive long enough to be right eventually.

The difference between a good investor and a great one isn't the ability to find more opportunities — it's the discipline to do nothing when there are none worth taking. Most of the money in investing is made by sitting, not by acting.

The one thing I would say is that the optimal amount of hassle and stress is not zero. Eliminating all friction is often the goal, but a life or portfolio with no friction is also one with no growth, no learning, and no resilience. The question is which frictions are worth tolerating.

You don't get rewarded for taking risk; you get rewarded for buying cheap assets. And if the assets you bought got pushed up in price simply because they were risky, then there's no real margin of safety in owning them.

Most people overestimate what they can do in one year and underestimate what they can do in ten years. But the rarer error — the one that actually destroys wealth — is mistaking a temporary edge for a permanent one and pressing it long past its expiration date.

Risk means more things can happen than will happen. The gap between those two things is where most investment mistakes are made — not from bad analysis, but from assuming the future is narrower than it actually is.

The biggest investing errors come not from factors that are informational or analytical, but from those that are psychological. Investors with no knowledge of (or interest in) a company's merits buy because the price is rising.

Most people think that finding a hot stock is investing. Finding a stock that is cheap is not enough; you also need a catalyst — something that will actually cause the price to reflect the value. Without a catalyst, you can be right and still lose money for years.

Most people think diversification means owning many things. But the real diversification that matters is diversification across time — being able to survive long enough that the math works in your favor. Staying power is the asset most investors forget to buy.

The difference between a good business and a bad business is that good businesses throw up one easy decision after another. The bad ones give you horrible choices — decisions where every option has a serious downside.