Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

99% of failures come from people who have the habit of making excuses.

Don’t compare yourself to others. Compare yourself to the person you were yesterday.

There is no elevator to success, you have to take the stairs.

Never let a dark chapter make you forget that better days are ahead of you. Your story is far from over.

A hero is no braver than an ordinary man, but he is braver five minutes longer.

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

Procrastination is the thief of time and the enemy of success.

Dreams don't work unless you do.

Whenever you find yourself doubting how far you can go, just remember how far you have come.

In order to become better than anybody else you must first become better than yourself.

The bad news is time flies, the good new is that you're the pilot.

Nobody said it’d be easy, they just promised it would be worth it.

Don’t hang your targets after you’re done shooting.

Time is your friend, impulse is your enemy.