The strength of a habit is a function of the number of times it has been reinforced.

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.

There is no more intrepid a voyager than the philosopher.

我不知道我为什么爱你，但是我爱你。

最重要的是对你所做的事情真诚。如果你真诚，公众会感受到它。