I am absolutely convinced that no wealth in the world can help humanity forward, even in the hands of the most devoted worker in this cause. The example of great and pure characters is the only thing that can produce fine ideas and noble deeds. Money only appeals to selfishness and always tempts its owners irresistibly to abuse it

The most aggravating thing about the younger generation is that I no longer belong to it.

Information is not knowledge.

The sceptic will say, 'It may well be true that this system of equations is reasonable from a logical standpoint, but this does not prove that it corresponds to nature.' You are right, dear sceptic. Experience alone can decide on truth.

A ship is safe at shore but it's not built for that.

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

All religions, arts and sciences are branches of the same tree.