From Apollonius I learned freedom of will and undeviating steadiness of purpose; and to look to nothing else, not even for a moment, except to reason.

When you arise in the morning, think of what a precious privilege it is to be alive - to breathe, to think, to enjoy, to love ... then make that day count!

Don't let your imagination to be crushed by life as a whole. Don't try to pictures everything bad that could possibly happen. Stick with the situation at hand. ...Then remind yourself that past and present have no power over you. Only the present.

It is not the body, nor the personality that is the true self. The true self is eternal. Even on the point of death we can say to ourselves, "my true self is free. I cannot be contained."

The man who doesn't know what the universe is doesn't know where he lives.

To refrain from imitation is the best revenge.

Nothing has such power to broaden the mind as the ability to investigate systematically and truly all that comes under thy observation in life.