Quote by Richard Feynman

"Do not keep saying to yourself that you can't do something, or that something is impossible. You only have to do the impossible once to realize it is possible."

Richard Feynman Courage
Theoretical Physicist American 1918–1988

More from Richard Feynman

"The first principle is that you must not fool yourself, and you are the easiest person to fool."
"What I cannot create, I do not understand."
"The pleasure of finding things out is the most important thing."
"You don't have to know everything to do something."

All quotes by Richard Feynman

More Courage Quotes

"Never let fear stop you from chasing your dreams."
- Ricky Ricardo
"Courage is being afraid but doing it anyway."
- Lucy Ricardo
"Sometimes you gotta do what you gotta do."
- Logan
"Sometimes you have to be the monster to stop the monsters."
- Logan

All Courage quotes