Words have power—use them wisely.

It is a mistake to confound strangeness with mystery.

The beauty of chemistry lies in its ability to explain the world at the molecular level.

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.

如果你想走得快，独自前行；如果你想走得远，结伴同行。