Only through focus can you do world-class things, no matter how capable you are.

Bill Gates

It is not the hours we put in on the job, it is what we put into the hours that counts.

Sidney Madwed.

Know thy work and do it, and work at it like a Hercules. One monster there is in the world—an idle man.

Carlyle

I hated every minute of training, but I said, “Don’t quit. Suffer now and live the rest of your life as a champion.”

Muhammad Ali

Whatever your life’s work is, do it well. A man should do his job so well that the living, the dead, and the unborn could do it no better.

Martin Luther King, Jr.

When you play, play hard; when you work, don’t play at all.

Theodore Roosevelt