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

If you really want something you’ll find a way. If you don’t you’ll find an excuse.

A hero is no braver than an ordinary man, but he is braver five minutes longer.

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

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

I think, therefore I am.

Everything you want is on the other side of fear

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

Never underestimate the importance of small steps. small steps = big changes. 

Tough times never last, but tough people do.

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

Time is your friend, impulse is your enemy.

Fall down seven times, stand up eight.

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

"I" not them. Be the best version of you.