I think, therefore I am.

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

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

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

Time is your friend, impulse is your enemy.

Run in the morning before your body figures out what you're doing

The greatest enemy to human potential is your comfort zone

Pure mathematics is in its way, the poetry of logical ideas.

Everything you want is on the other side of fear

Don't fear failure, fear being in the same exact same place next year as you are now.

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

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

Do Not Be Afraid To Make Mistakes. Each mistake teaches us something.

Hard work beats talent when talent doesn't work hard.

Never underestimate the importance of small steps. small steps = big changes.