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

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

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

Tough times never last, but tough people do.

We learn more from failure than we do from success.

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

No one starts out on top. You have to work your way up.

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

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

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

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

Success is not final, failure is not fatal.  It is the courage to continue that counts.

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

Don't expect to be good at maths or understand things straight away. Be patient and persistent. The most powerful warriors are patience and time.

If you want to succeed, double your failure rate.