Your attitude is everything. Pick a good one.

Mistakes have the power to turn you into something better than you were before.

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

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

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

You cannot escape the responsibility of tomorrow by evading it today

Fall down seven times, stand up eight.

Success can never happen without the journey (struggle).

Time is your friend, impulse is your enemy.

I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

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

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

Procrastination makes easy things hard and hard things harder.

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

The easiest person to deceive is yourself.