Quote by David Gross
"Innovation is not about having new ideas; it is about having the courage to challenge old ones."
More from 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."