I don't write for the reader, I write against the reader.

He has not learned the first lesson of life who does not every day surmount a fear.

In the quest to understand quantum gravity, we are like children playing on the shore of a vast ocean, occasionally finding a smooth pebble or a pretty shell, while the great ocean of truth lies undiscovered before us.

质量始于农场，而卓越是通过每一步的精心打造实现的。

Ignoring isn’t the same as ignorance, you have to work at it.

The best way to cheer yourself up is to try to cheer somebody else up.

I'm not a person who lives in the past. I'm always looking forward.

The poverty of our century is unlike that of any other. It is not, as poverty was before, the result of natural scarcity, but of a set of priorities imposed upon the rest of the world by the rich.