"The business schools reward difficult complex behavior more than simple behavior, but simple behavior is more effective."

"I'm 89. I've been doing this for 70 years. I've never seen anything like this. We will get through this, but I don't know how long it will take."

"The most important quality for an investor is temperament, not intellect."

"Chains of habit are too light to be felt until they are too heavy to be broken."

"I tell students, 'Go to bed smarter than when you woke up.'"