Clear writing is universal. People talk about writing down to an audience or writing up to an audience; I think that's nonsense. If you write in a way that is clear, transparent, and elegant, it will reach everyone.

Six degrees of separation doesn't mean that everyone is linked to everyone else in just six steps. It means that a very small number of people are linked to everyone else in a few steps, and the rest of us are linked to the world through those special few.

The Tipping Point is the biography of an idea, and the idea is very simple. It is that the best way to understand the emergence of fashion trends, the ebb and flow of crime waves, or, for that matter, the transformation of unknown books into bestsellers, or the rise of teenage smoking, or the phenomena of word of mouth, or any number of the other mysterious changes that mark everyday life is to think of them as epidemics. Ideas and products and messages and behaviors spread just like viruses do.

The act of facing overwhelming odds produces greatness and beauty.

The face is not a secondary billboard for our internal feelings. It is an equal partner in the emotional process.

We spend a lot of time and effort trying to figure out who's going to be a good NFL quarterback, and we do a very bad job of it. We don't really know. And we also spend a lot of time trying to figure out who will be a good teacher, and we're really bad at that too. We don't know if someone is going to be a good teacher when they start teaching. So what should we do in those situations in which predictions are useless?

When people reflexively write checks to institutions that have billions of dollars in the bank, they are essentially committing a moral crime. Your money could do good in this world and you're choosing instead to waste it. People have to do a better job of that. You've got to find places where your money's going to do some good and direct your dollars towards that institution.