Don’t compare yourself to others. Compare yourself to the person you were yesterday.

Success is not final, failure is not fatal.  It is the courage to continue that counts.

Don’t be afraid to work hard and find out how good you can really be.

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

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

Failure is not the opposite of success, it is part of the success.

Don't expect to be good at maths or understand things straight away. Be patient and persistent. The most powerful warriors are patience and time.

If you fail, next time fail better.

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.

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

The bad news is time flies, the good new is that you're the pilot.

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

Failure to prepare = preparing to fail

The easiest person to deceive is yourself.

There are no bad mistakes in maths, only discoveries.