任何道德体系都无法仅凭权威立足。

The statesman， who should attempt to direct private people in what manner they ought to employ their capitals， would not only load himself with a most unnecessary attention but assume an authority which could safely be trusted， not only to no single person， but to no council or senate whatever， and which would nowhere be so dangerous as in the hands of a man who had folly and presumption enough to fancy himself fit to exercise it.

Make up your mind to act decidedly and take the consequences. No good is ever done in this world by hesitation.  

社会联系是幸福感最强的预测因素之一。

我们所知道的很少，而我们不知道的却是无限的。