Knowledge can be shared, but wisdom cannot. It must be discovered and lived.

Giving up on assembly language was the apple in our Garden of Eden: Languages whose use squanders machine cycles are sinful. The LISP machine now permits LISP programmers to abandon bra and fig-leaf.

The artist must remain free, even from his own style.

Everything is hard before it is easy. The day before something is a breakthrough， it’s a stupid idea.

我们不是在创造物体，而是在创造场所。