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

Tough times never last, but tough people do.

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

The greatest enemy to human potential is your comfort zone

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

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

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

Do what you have always done and you will always be what you have always been

The temptation to quit will be the greatest when you are about to succeed

The greatest glory in loving lies not in never falling, but in rising every time we fall.

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.

Success is not final and failure is not fatal. It is the courage to continue that counts.

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.

If you fail, next time fail better.