Tragedy is when I cut my finger. Comedy is when you walk into an open sewer and die.

The first rule of government spending: why build one when you can have two at twice the price?

We are all prisoners of our desires, and the key to our cell is in our own hands.

Every breakthrough starts with a question.

勇气并不意味着你不害怕，而是你不让恐惧阻止你。

理解量子力学不是接受它的奇异，而是将其视为现实的基本方面。