The easiest person to deceive is yourself.

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

If you fail, next time fail better.

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

Yesterday is history, tomorrow is a mystery, but today is a gift—that's why it's called 'the present

You can have results or excuses, not both

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

Practice like you’ve never won. Perform like you’ve never lost.

The greatest mistake we make is living in constant fear that we will make one.

There is no elevator to success, you have to take the stairs.

Failure to prepare = preparing to fail

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

No one starts out on top. You have to work your way up.

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

There are no bad mistakes in maths, only discoveries.