B.F. Skinner

Truth is a matter of effective action.

The only way to know the truth is to act upon it.

Science is a search for order, not for truth.

The truth is not out there; it is in our behavior.

The beautiful is that which is reinforced.

Beauty is not in the eye of the beholder, but in the history of reinforcement.

The good life is not a matter of what you have, but of what you do.

Life is a process of becoming, not of being.

The meaning of life is to live it.

Death is not the end of life, but the end of a particular set of contingencies.

The fear of death is the fear of losing control.

Consciousness is a product of social reinforcement.

We do not choose our consciousness; it is chosen for us by our environment.

The mind is not a thing, but a way of behaving.

The self is a repertoire of behavior.

We are not free to choose our values; our values are chosen for us by our environment.

The control of human behavior is not a question of whether, but of how.

The ultimate goal of a science of behavior is the design of a culture.

Man is not a rational animal, but a rationalizing animal.

The environment is not a passive background; it is an active participant in shaping behavior.