The most important thing is to have a well-thought-out, long-term investment strategy.

数学不是一项观赏性运动。

Problems frequently get easier if you turn them around in reverse. In other words, if you want to help India, the question you should ask is not “how can I help India,” it’s “what is doing the worst damage in India? What will automatically do the worst damage and how do I avoid it?”

Remember, if you ever need a helping hand, it's at the end of your arm, as you get older, remember you have another hand: The first is to help yourself, the second is to help others.

A theory should not attempt to explain all the facts, because some of the facts are wrong.

"The colony is the place where the project of a new humanity is to be tested, where the dream of a world without borders is to be realized."

Around computers it is difficult to find the correct unit of time to measure progress. Some cathedrals took a century to complete. Can you imagine the grandeur and scope of a program that would take as long?

I don't have any sense of myself except as an actor.