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

Tough times never last, but tough people do.

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

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

Time is your friend, impulse is your enemy.

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

If you can understand just one thing thoroughly, then you will understand everything.

The easiest person to deceive is yourself.

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

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

The journey of a thousand miles begins with one step.

Don’t practice until you get it right, practice until you can’t get it wrong.

I think, therefore I am.

Run in the morning before your body figures out what you're doing

Skills are built not born.