Richard Feynman

"Find out how to understand nature through careful observation and clever experimentation."

"The best way to predict the future is to invent it."

"That's how people got interested in science in the first place."

"You must never fool yourself, and remember you are the easiest person to deceive."

"Rather than learning things, focus on understanding things."

"Most of the effort goes into what might be called thinking."

"Nature can be mystifying but never mysterious."

"The human mind has the capacity to understand truth."

"What do you care what other people think?"

"Achievement comes from sustained attention and focus."

"Everything we call real is made of things that cannot be regarded as real."

"There is pleasure in understanding something about the way the world works."

"To study a science is not to collect all the facts but to learn the methods."

"One cannot develop taste from principles, only from experience and enlightenment."

"The effort to understand the universe raises us above the level of farce."

"Be creative in your thinking and bold in your approach."

"You must be willing to admit ignorance to advance."

"The pleasure comes from the thinking, not from what you end up knowing."

"Be careful of definitions; they can sometimes define you into a corner."

"If you want to solve a problem, you must understand it completely."

"The only way to make sense out of change is to plunge into it."

"Science is a way of thinking about the world, not a collection of facts."

"Asking the right question is sometimes more important than finding the answer."

"Everything that's interesting about human nature can be brought down to physics."

"The essence of science is that it works by making guesses and testing them."

"Uncertainty is inherent in nature and in our understanding of it."

"Do not worry about what problem you should work on. Just work on something you enjoy."

"Admitting your confusion is the first step to clarity."

"The best way to understand something is to try to explain it to someone else."

"Nature's methods are always elegant, even when they appear simple."