A day wasted on others is not wasted on one's self.

The value of an idea lies in the using of it.

Politics is for the present, but an equation is for eternity. 

Our goal is to make the best devices in the world, not to be the biggest.

Vices are sometimes only virtues carried to excess!

If you have religious faith, very good, you can add on secular ethics, then religious belief, add on it, very good. But even those people who have no interest about religion, okay, it's not religion, but you can train through education.

If a man reaches the heart of his own religion, he has reached the heart of the others, too. There is only one God, and there are many paths to him.

There are only two mistakes one can make along the road to truth; not going all the way, and not starting.

Breach of trust always comes from the people we trust.

I have always found that mercy bears richer fruits than strict justice.

It is no use saying, 'We are doing our best.' You have got to succeed in doing what is necessary. 

Therefore, the good of man must be the end of the science of politics.