I think, therefore I am.

The wise person knows that no answer is also an answer

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

When you make a mistake, take another chance. Only when you choose not to do so do you fail.

I can is 100 times more important than IQ.

You're not in competition with anyone but yourself. Outdo your past, not other people.

No matter how bad it gets, you’re still way ahead of those who haven’t even started.

Tomorrow is worth more than yesterday but less than today.

The bad news is time flies, the good new is that you're the pilot.

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

The master has failed more times than the beginner has even tried

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

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

You cannot escape the responsibility of tomorrow by evading it today

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