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

There are no shortcuts to any place worth going.

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

We learn more from failure than we do from success.

Skills are built not born.

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

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

The wise person knows that no answer is also an answer

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

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

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

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.

If you want to succeed, double your failure rate.

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

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