Quote by Leon Lederman

"The effort to understand the universe is one of the very few things that lifts human life a little above the level of farce, and gives it some of the grace of tragedy."

"Science is based on experiment, on a willingness to challenge old dogma."

"Imagination is more important than knowledge. Knowledge is limited; imagination embraces the entire world."

"The most important thing is to be curious."

"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"