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

It is never too late to turn an unproductive day into a productive one.

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

The greatest enemy to human potential is your comfort zone

It always seems impossible until it's done.

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

Success is a journey, not a destination.

It doesn’t matter where you start, it matters how you end

Your attitude is everything. Pick a good one.

The gift of imperfection - let go of who you think you're supposed to be and embrace who you are.

Knowledge is of no value unless you put it into practice.

Yesterday is history, tomorrow is a mystery, but today is a gift—that's why it's called 'the present

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

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

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.