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

Your limitation - its only your imagination.

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

There are no bad mistakes in maths, only discoveries.

It always seems impossible until it's done.

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

Just stick with it, what seems hard now will one day be your warm up.

The journey of a thousand miles begins with one step.

I can is 100 times more important than IQ.

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

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

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

Everything you want is on the other side of fear

Practice like you’ve never won. Perform like you’ve never lost.