A journey to the unknown shores needs a port, a ship, a wind; but more important than all of them: Courage; courage to leave the known for the unknown!

A well educated man with an independent mind is a type of man liked by no government!

Do not discuss the religious matters with people; do not waste your valuable time to discuss the untruth! Your time is short; spend it for the science and the art!

Try to exist even under hardest conditions! That is the effort which deserves the applauses most!

There is no life in war; there is life only in peace.

World is brighter with the happiness of children.

Every man is free to push the mountains, but mountains won't move with these pushes.