You are responsible for how your life turns out, and your attitude shapes that life for better or worse.

He had only one thing to do and that was what he should think about and he must think it out clearly and take everything as it came along, and not worry. To worry was a bad as to be afraid. It simply made things more difficult.

Simple it's not, I'm afraid you will find, for a mind maker-upper to make up his mind

If you start to hesitate with your game, if you start to not go completely with your plan, then it's tough to play your best tennis.

The only difference between success and failure is the ability to take action.

I can't pretend that I'm brave and that I can beat the whole world.

What the mind can conceive, it can achieve.

We really focus when we compete, not about the placement so much, just about us having our moment.

A firm decision sets everything in motion—your mindset and your actions

I am a sport. And I don't have a chip on my shoulder.