You're not in competition with anyone but yourself. Outdo your past, not other people.

It always seems impossible until it's done.

The wise person knows that no answer is also an answer

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

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

No matter how bad it gets, you’re still way ahead of those who haven’t even started.

Hope might be a good breakfast, but it makes a very poor dinner

We learn more from failure than we do from success.

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

Success is not final, failure is not fatal.  It is the courage to continue that counts.

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

You cannot escape the responsibility of tomorrow by evading it today

Life is full of opportunities. With every opportunity that is missed, another one is born.

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

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