What is love except another name for the use of positive reinforcement? Or vice versa.

Those who have had anything useful to say have said it far too often, and those who have had nothing to say have been no more reticent.

If freedom is a requisite for human happiness, then all that’s necessary is to provide the illusion of freedom.

No theory changes what it is a theory about. Nothing is changed because we look at it, talk about it, or analyze it in a new way. Keats drank confusion to Newton for analyzing the rainbow, but the rainbow remained as beautiful as ever and became for many even more beautiful. Man has not changed because we look at him, talk about him, and analyze him scientifically. ... What does change is our chance of doing something about the subject of a theory. Newton's analysis of the light in a rainbow was a step in the direction of the laser.

Behavior is shaped and maintained by its consequences

A scientist may not be sure of the answer, but he's often sure he can find one. And that's a condition which is clearly not enjoyed by philosophy.

If the world is to save any part of its resources for the future, it must reduce not only consumption but the number of consumers.