有人自认为在做有用的事，却收效甚微；有人看似在做“无用”之功却流芳后世，引为大用。

In a time of universal deceit, telling the truth is a revolutionary act.

I never buy anything unless I can give myself a good reason why I should buy it.

比喻要有长期坚持和忍耐的毅力。