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

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

It always seems impossible until it's done.

You can have results or excuses, not both

There are no bad mistakes in maths, only discoveries.

Success can never happen without the journey (struggle).

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

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

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.

Everything you want is on the other side of fear

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

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

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

Run in the morning before your body figures out what you're doing

The temptation to quit will be the greatest when you are about to succeed