When we understand knowledge-based systems, it will be as before -- except our fingertips will have been singed.

I don't want to fall in love, I just want to fall asleep.

Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.

我不会继续敲那扇不为我打开的老门。我要创造自己的门，然后走进去。

We can easily forgive a child who is afraid of the dark；the real tragedy of life is when men are afraid of the light.