Before success comes in any man's life he is sure to meet with much temporary defeat and, perhaps, some failures. When defeat overtakes a man, the easiest and most logical thing to do is to quit. That is exactly what the majority of men do.
Fight one more round. When your arms are so tired that you can hardly lift your hands to come on guard, fight one more round. When your nose is bleeding and your eyes are black and you are so tired that you wish your opponent would crack you one on the jaw and put you to sleep, fight one more round - remembering that the man who always fights one more round is never whipped.
James J. Corbett
There’s only one way to succeed in anything, and that is to give it everything.
I'm convinced that about half of what separates the successful entrepreneurs from the non-successful ones is pure perseverance.
Patience and perseverance have a magical effect before which difficulties disappear and obstacles vanish.
John Quincy Adams
The harder the conflict, the more glorious the triumph. What we obtain too cheap, we esteem too lightly; it is dearness only that gives everything its value. I love the man that can smile in trouble, that can gather strength from distress and grow brave by reflection. ‘Tis the business of little minds to shrink; but he whose heart is firm, and whose conscience approves his conduct, will pursue his principles unto death.