If you're not failing, you're not pushing your limits, and if you're not pushing your limits, you're not maximizing your potential.
Language is a skin: I rub my language against the other. It is as if I had words instead of fingers, or fingers at the tips of my words.
一个设计良好的系统应该易于使用、易于理解和易于修改。
The secret of great fortunes without apparent cause is a crime forgotten, for it was properly done.