"The only way to do great work is to love what you do."

"Education is what survives when what has been learned has been forgotten."

"The ultimate aim of the science of behavior is to understand and explain human behavior."

"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."

"The world is not a place for self-expression, but for self-control."