If your opinions on one subject can be predicted from your opinions on another， you may be in the grip of an ideology. When you truly think for yourself your conclusions will not be predictable.

When I am abroad， I always make it a rule never to criticize or attack the government of my own country。 I make up for lost time when I come home.

知识的最大敌人不是无知，而是知识的幻觉。

Never stop learning, because life never stops teaching.

Sorrow is knowledge.

战略和运营效率之间存在根本区别。