过去总是紧张的，未来是完美的。

译文：凡是一个人要做一件事情，就必须把全部的精神都集中在这件事情上，从开头到结尾都不能松懈，不可以看到别的就改变主意，做着这件事又想着那件事，坐在这座山上又望着那座山。一个人如果没有恒心，一辈子都不会有什么成就。

我想像鸟儿歌唱一样作画。

In energy, the biggest risk is not taking any risks at all.

Be yourself; everyone else is already taken.

Computer programming is an art, because it applies accumulated knowledge to the world, because it requires skill and ingenuity, and especially because it produces objects of beauty.