"The problem is not to adjust people to the world they live in, but to adjust the world to the people who live in it."

"I deny that I have ever attacked anyone's dignity. I have attacked the concept of dignity as a causal agent."

"The way positive reinforcement is carried out is more important than the amount."

"The problem is not to get students to ask questions, but to get them to ask interesting questions."

"We are controlled by the world in which we live."