While we try to teach our children all about life, our children teach us what life is all about.

We must not only think, but also act. Faith without action is delusion. We must not only be pure in thought, but also in word and deed.

The gods of the valleys are not the gods of the hills.

Go for it now. The future is promised to no one.

Pure mathematics is, in its way, the poetry of logical ideas.

Live bravely and present a brave front to adversity.

There are two kinds of failures: those who thought and never did, and those who did and never thought.