Anger blows out the lamp of the mind.

Happiness is not a destination. It is a method of life.

Patience and perseverance have a magical effect before which difficulties disappear and obstacles vanish.

An expert is someone who knows some of the worst mistakes that can be made in his subject and who manages to avoid them.

He who asks a question may be a fool for five minutes. But he who never asks a question remains a fool forever.