The journey of a thousand miles begins with one step. 

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

No one starts out on top. You have to work your way up.

Time is your friend, impulse is your enemy.

It is never too late to turn an unproductive day into a productive one.

I can is 100 times more important than IQ.

Failure to prepare = preparing to fail

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

We learn more from failure than we do from success.

Start, struggle, fail, fix and learn. Repeat.

The greatest mistake we make is living in constant fear that we will make one.

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. 

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

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

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.