Quote by David Gross

"In physics, you don't have to go around making trouble for yourself—nature does it for you."

"The most important thing in science is to ask the right questions."

"I think the key to understanding the universe is to think about it in terms of symmetry."

"Discovery requires both courage and patience."

"The best part of living is knowing you survived."

"The world needs heroes."

"Life is too short to live poorly."

"I'd rather be an optimist and be wrong than a pessimist and be right"