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

Hard work - a two way street where you get exactly what you put in.

Fall down seven times, stand up eight.

We all have two lives. The second begins when we realise we only have one. 

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

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

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

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

Tough times never last, but tough people do.

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

I think, therefore I am.

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

Time is your friend, impulse is your enemy.

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

You cannot start the next chapter of your life if you keep re-reading the last one.