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

"The world is not a dangerous place because of those who do evil, but because of those who look on and do nothing."

"We are all controlled by the world, part of the time in rather crude ways, and part of the time very subtly."

"I've often said that my rats have taught me more than I've taught them."

"The only way to tell if a person is honest is to observe their behavior."