La poesía es la única prueba concreta de la existencia del hombre.

买水管、延长线或梯子时，买比你认为需要的长得多的。才会是正确的尺寸。

I therefore have decided to read only the writings of men who have been executed or have risked their lives in some way.

If you're not failing, you're not trying hard enough.

The laws of behavior can be derived from basic physiological principles.

关于技术最重要的事情是它如何改变我们的生活方式。