“Not everything needs to be said. The silences, the words that arent spoken, lead us to the questions we should be asking.”

“The scientist is not a person who gives the right answers, he's one who asks the right questions.”

“Questions are for the benefit of every student, not just the one raising his hand. If you don't have the starch to stand up in class and admit what you don't understand, then I don't have the time ...”

“Thinking is the hardest work anyone can do, which is probably the reason why we have so few thinkers. ”

“Perhaps the logical conclusion of everyone looking the same is everyone thinking the same.”

“I could not think without writing.”

“One of the new things people began to find out in the last century was that thoughts- just mere thoughts- are as powerful as electric batteries- as good for one as sunlight is, or as bad for one as...”

“I have seen these persons speak unthinkingly, not realizing that to speak is also to be. Word and gesture are man's thought. We should not speak without reason.”

“Iron turns red when it corrodes, and copper turns green. Meat turns to maggots, and thoughts turn to speech.”