Intelligence is what you use when you don't know what to do.

追求科学不仅仅是关于发现；它是关于理解我们周围的世界并使其变得更美好。

The decisions of the poor are often heartbreakingly rational.

理解计算的极限与理解数学的极限同样重要。

Laughter and tears are both responses to frustration and exhaustion. I myself prefer to laugh, since there is less cleaning up to do afterward.