True innovation often comes from unexpected directions.

The past is what you remember, imagine you remember, convince yourself you remember, or pretend you remember.

把每一天当作生命的最后一天来活。

Society can and does execute its own mandates， and if it issues wrong mandates instead of right， or any mandates at all in things with which it ought not to meddle， it practices a social tyranny more formidable than many kinds of political oppression， since， though not usually upheld by such extreme penalties， it leaves fewer means of escape， penetrating much more deeply into the details of life， and enslaving the soul itself.

The best designs come from understanding the problem deeply and then finding the simplest solution.

真理就是在经验面前站得住脚的东西。