We are far too willing to reject the belief that much of what we see in life is random.

I would be wary of experts' intuition, except when they deal with something that they have dealt with a lot in the past.

If individuals are rational, there is no need to protect them against their own choices.

An executive might have a very strong intuition that a given product has promise, without considering the probability that a rival is already ahead in developing the same product.

Our comforting conviction that the world makes sense rests on a secure foundation: our almost unlimited ability to ignore our ignorance.

There's a tendency to look at investments in isolation. Investors focus on the risk of individual securities.

We can't live in a state of perpetual doubt, so we make up the best story possible and we live as if the story were true.