The longer we dwell on our misfortunes, the greater is their power to harm us.

Voltaire

Learn to laugh at yourselves as one must laugh!

Friedrich Nietzsche

Everyone is needed, but no one is necessary.

Bruce Coslet

By three methods we may learn wisdom: first, by reflection, which is noblest; second, by imitation, which is easiest; and third by experience, which is the bitterest.

Confucius

You must be the change you wish to see in the world.

Mahatma Gandhi

Is it so bad then to be misunderstood? Pythagoras was misunderstood, and Socrates, and Jesus, and Luther, and Copernicus, and Galileo, and Newton, and every pure and wise spirit that ever took flesh. To be great is to be misunderstood.

Ralph Waldo Emerson