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."

"Friendship is built on trust and honesty."

"True friendship is worth more than gold."

"Good friends are like stars, always there even when you can't see them."

"Friendship means sacrifice."