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.

A real decision is measured by the fact that you’ve taken a new action. If there’s no action, you haven’t truly decided.

"The beauty of filmmaking is in the collaboration, in the shared vision and the collective effort."

The concept of computational complexity is not just about how fast we can compute, but also about understanding the limits of what can be computed.

The great advantage of telling the truth is that nobody ever believes it.

In the midst of winter, I found there was, within me, an invincible summer.

我不想出名，我想变得伟大。

Nothing can stop the man with the right mental attitude from achieving his goal; nothing on earth can help the man with the wrong mental attitude.