The greatest glory in living lies not in never falling, but in rising every time we fall.

一个笼子去寻找一只鸟。

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.

短期收益永远不应以长期可持续性为代价。

动力学的方程是完全的，我们无需超越它们。

创新不仅仅是创造新产品，而是重新构想我们如何解决问题。