Man is a universe within himself.

There is no retirement age for writers…

Look deep into nature, and then you will understand everything better.

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

World belongs to humanity, not the leader, that leader or that king or prince or religious leader. World belongs to humanity. 

Innovation distinguishes between a leader and a follower.

First they ignore you, then they laugh at you, then they fight you, then you win.

Good design is good business.

Just as a man would not cherish living in a body other than his own, so do nations not like to live under other nations, however noble and great the latter may be.

Even death is not to be feared by one who has lived wisely.

Change in all things is sweet.

I am looking for a lot of men who have an infinite capacity to not know what can't be done.