A genius is a talented person who does his homework.

Sticking to it is the genius.

One may certainly admire man as a mighty genius of construction, who succeeds in piling an infinitely complicated dome of concepts upon an unstable foundation, and, as it were, on running water.

All differences in this world are of degree, and not of kind, because oneness is the secret of everything.

I do not need drugs to be a genius, do not take a genius to be human, but I need your smile to be happy.

Anyone can make them cry, but it takes a genius to make them laugh.