世界的整个问题在于愚蠢的人和狂热分子总是对自己如此确定，而聪明的人则充满疑虑。

The key to artificial intelligence is the representation of knowledge.

Farmers are the original environmentalists; their daily decisions shape our landscapes more than any policy ever could.

Sometimes, it's not that the other person doesn't care about you, but that you care too much about them.

写作的行为是一种乐观的行为。如果你觉得它不重要，你就不会费心去做。