The greatest mistake we make is living in constant fear that we will make one.

The greatest enemy to human potential is your comfort zone

Dreams don't work unless you do.

I think, therefore I am.

The temptation to quit will be the greatest when you are about to succeed

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.

The greatest glory in loving lies not in never falling, but in rising every time we fall.

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

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

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

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

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.

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

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