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

I think, therefore I am.

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

Dreams don't work unless you do.

Skills are built not born.

The journey of a thousand miles begins with one step. 

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.

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

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

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

Time is your friend, impulse is your enemy.

You cannot escape the responsibility of tomorrow by evading it today

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

You can hire a tutor but you can't hire someone to practice for you.

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