A hero is no braver than an ordinary man, but he is braver five minutes longer.

The master has failed more times than the beginner has even tried

Procrastination is the thief of time and the enemy of success.

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

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

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

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

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

We learn more from failure than we do from success.

The greatest enemy to human potential is your comfort zone

Everything you want is on the other side of fear

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

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

Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

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