I don't stop when I'm tired. I only stop when I'm done.

Marilyn Monroe

Problems are the price you pay for progress.

Branch Rickey

The world is moving so fast these days that the man who says it can't be done is generally interrupted by someone doing it.

Elbert Hubbard

You can make excuses or you can make progress. You choose.

Brian Tracy

So often people are working hard at the wrong thing. Working on the right thing is probably more important than working hard.

Caterina Fake

By working hard, old man, I hope to make something good one day. I haven't yet, but I am pursuing it and fighting for it.

Vincent van Gogh