Do Not Be Afraid To Make Mistakes. Each mistake teaches us something.

It always seems impossible until it's done.

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

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

There are no bad mistakes in maths, only discoveries.

Whenever you find yourself doubting how far you can go, just remember how far you have come.

He who has begun his task is half-way done. Have the courage to begin!

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

The wise person knows that no answer is also an answer

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

You can hire a tutor but you can't hire someone to practice for you.

If you fail, next time fail better.

Your attitude is everything. Pick a good one.

The master has failed more times than the beginner has even tried

The easiest person to deceive is yourself.