When you make a mistake, take another chance. Only when you choose not to do so do you fail.

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

You can be shown the path, but only you can make the first step.

If you fail, next time fail better.

It always seems impossible until it's done.

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

Your limitation - its only your imagination.

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

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

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

Go as far as you can see, when you get there, you’ll be able to see further

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

Don't fear failure, fear being in the same exact same place next year as you are now.

If you can understand just one thing thoroughly, then you will understand everything.

If you really want something you’ll find a way. If you don’t you’ll find an excuse.