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

There are no bad mistakes in maths, only discoveries.

There are no shortcuts to any place worth going.

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

Time is your friend, impulse is your enemy.

Fall down seven times, stand up eight.

Tough times never last, but tough people do.

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

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

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

FAIL - First Attempt In Learning

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

Practice like you’ve never won. Perform like you’ve never lost.

I can is 100 times more important than IQ.

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