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."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."