Success can never happen without the journey (struggle).

If you want to succeed, double your failure rate.

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.

There are no bad mistakes in maths, only discoveries.

Never underestimate the importance of small steps. small steps = big changes. 

The easiest person to deceive is yourself.

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

99% of failures come from people who have the habit of making excuses.

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

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

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

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

Patience is when you’re supposed to get mad, but you choose to understand

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

Try and do one thing each day that you would really rather not do.