Although a man may have no jurisdiction over the fact of his existence, he can hold supreme command over the meaning of existence for him.

Cynicism is intellectual treason.

The capacity for hope is the most significant fact of life. It provides human beings with a sense of destination and the energy to get started.

The individual is capable of both great compassion and great indifference. He has it within his means to nourish the former and outgrow the latter.

The control center of your life is your attitude.

The essence of man is imperfection.

What a man really says when he says that someone else can be persuaded by force, is that he himself is incapable of more rational means of communication.