It is futile to demand an a priori proof of the existence of objects which are not immediately ‘given’.

It is hard to read a newspaper or watch a television newscast without encountering someone who has come up with a new 'solution' to society's 'problems.'

没有完美的知识可以称为我们与生俱来的；唯有从经验中获得的知识才是真正的知识。

沟通中最重要的是听到那些没有说出来的话。

有人今天坐在树荫下，因为他很久以前种了一棵树。

每次挫折都是卷土重来的铺垫。