Thomas A. Edison - There is no substitute for hard work.

Marshall McLuhan - “There are no passengers on Spaceship Earth. We are all crew.”

Robert Griffin II - Hard work pays off - hard work beats talent any day, but if you're talented and work hard, it's hard to be beat.

Hope Hicks - There is no substitute for hard work. Never give up. Never stop believing. Never stop fighting.

Thomas A. Edison - I have friends in overalls whose friendship I would not swap for the favor of the kings of the world.

Thomas A. Edison - Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

Robert Half - Hard work without talent is a shame, but talent without hard work is a tragedy.

Newt Gingrich - Perseverance is the hard work you do after you get tired of doing the hard work you already did.

Geraint Thomas - You will have ups and downs - but believe anything is possible. With hard work, it can come off.

Shannon Sharpe - A lot of people mistake habit for hard work. Doing something over and over again is not working hard.

Margaret Mead - I learned the value of hard work by working hard.

Harry Golden - The only thing that overcomes hard luck is hard work.

Leonard Cohen - I never had the sense that there was an end: that there was a retirement or that there was a jackpot.

Haile Gebrselassie - Once you have commitment, you need the discipline and hard work to get you there.

Alan Cohen - There is virtue in work and there is virtue in rest. Use both and overlook neither.

Sylvester Stallone - It ain’t about how hard you hit. It’s about how hard you can get hit and keep moving forward.

Theodore Roosevelt - Far and away the best prize that life has to offer is the chance to work hard at work worth doing.