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

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

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

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

Failure to prepare = preparing to fail

Dreams don't work unless you do.

You can be shown the path, but only you can make the first step.

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

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

99% of genius comes from hard work, the remaining 1% comes from innate talent

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

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.

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

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

Time is your friend, impulse is your enemy.