Seek first the virtues of the mind; and other things either will come, or will not be wanted.

You're only as young as the last time you changed your mind.

A happy life consists not in the absence, but in the mastery of hardships.

Our heads are round so thought can change direction.

Genius, like humanity, rusts for want of use.

You are what you love, not what loves you.

If one has no sense of humor, one is in trouble.

Great things are not done by impulse, but by a series of small things brought together.

He who has a why to live for can bear almost any how.

In the depths of Winter, I finally learned that within me there lay an invincible summer.

Enthusiasm is the great hill-climber.

The quality of your life depends quite a bit on the quality of attention you project out onto the world.