Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

Failure to prepare = preparing to fail

I can is 100 times more important than IQ.

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

Hard work beats talent when talent doesn't work hard.

Fall down seven times, stand up eight.

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

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

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

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

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

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

Don’t confuse your path with your destination. Just because its stormy now doesn’t mean you are headed for failure.

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

Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.