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

The master has failed more times than the beginner has even tried

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

The greatest enemy to human potential is your comfort zone

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

There are no bad mistakes in maths, only discoveries.

It always seems impossible until it's done.

I have not failed, I've just found 10,000 ways that won't work.

We all have two lives. The second begins when we realise we only have one. 

You're not in competition with anyone but yourself. Outdo your past, not other people.

Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

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

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

You'll never change your life until you change something you do daily. The secret to success and change in found in your daily routine.

Don’t confuse your path with your destination. Just because its stormy now doesn’t mean you are headed for failure.