每个人出生时都是许多人，死时却是一个人。

I'm not interested in playing the hero. I'm interested in playing the human.

Nature has been the greatest chemist of all time, and we are just beginning to understand its secrets.

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.