The act of willing this or that, of choosing among various courses of conduct, is central in the realm of ethics.

To define twentieth-century humanism briefly, I would say that it is a philosophy of joyous service for the greater good of all humanity in this natural world and advocating the methods of reason, science, and democracy.

The cause-effect sequences in our brains are just as determining, just as inescapable, as anywhere else in Nature.

Since Humanism as a functioning credo is so closely bound up with the methods of reason and science, plainly free speech and democracy are its very lifeblood. For reason and scientific method can flourish only in an atmosphere of civil liberties.

Most men, I am convinced, have an unmistakable feeling at the final moment of significant choice that they are making a free decision, that they can really decide which one of two or more roads to follow.

The wise man looks at death with honesty, dignity and calm, recognizing that the tragedy it brings is inherent in the great gift of life.

Intuition does not in itself amount to knowledge, yet cannot be disregarded by philosophers and psychologists.