There are no bad mistakes in maths, only discoveries.

I think, therefore I am.

Procrastination is the thief of time and the enemy of success.

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

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

It always seems impossible until it's done.

Don’t compare yourself to others. Compare yourself to the person you were yesterday.

We learn more from failure than we do from success.

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

Don’t hang your targets after you’re done shooting.

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

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

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

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

Everything that happens was once a dream.