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

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

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

No one starts out on top. You have to work your way up.

In order to become better than anybody else you must first become better than yourself.

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

There are no shortcuts to any place worth going.

I think, therefore I am.

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

Instead of finding reasons why you can't, find reasons why you can.

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

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

Nobody said it’d be easy, they just promised it would be worth it.

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

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