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

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

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

There are no bad mistakes in maths, only discoveries.

The greatest enemy to human potential is your comfort zone

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time. 

Fall down seven times, stand up eight.

Success is the sum of small repeated efforts, day in and day out.

I can is 100 times more important than IQ.

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

Failure to prepare = preparing to fail

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

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

Success is a journey, not a destination.

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.