The language of chemistry is universal, transcending borders and cultures.

晏子春秋

The difference between theory and practice is that in theory, there is no difference between theory and practice, but in practice, there is.

If God intended everybody to be the same, he’d have given us all braces on our legs.

Democracy is a device that ensures we shall be governed no better than we deserve.

做给别人看很简单，做给自己看却很难。