Happiness lies in the joy of achievement and the thrill of creative effort.

The only thing that scares me more than space aliens is the idea that there aren't any space aliens. We can't be the best that creation has to offer. I pray we're not all there is. If so, we're in big trouble.

这就象花一样。如果你爱上了一朵生长在一颗星星上的花，那么夜间，你看着天空就感到甜蜜愉快。所有的星星上都好象开着花。

The greatest single achievement of computer science is the development of the concept of the algorithm.

爱情是感官的诗篇。

The key is to set realistic customer expectations, and then not to just meet them, but to exceed them—preferably in unexpected and helpful ways.