"We are beginning to see that the problem is not to free men, but to design the kind of culture in which they will be naturally good."

"The question is not whether man is free, but whether he can be made free."

"We can't solve problems by using the same kind of thinking we used when we created them."

"The future of man is in his own hands."

"We cannot prove that a man is free, but we can prove that he is not."