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

I have not failed, I've just found 10,000 ways that won't work.

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

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

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.

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

The road to success is like a staircase. If you want to succeed, double your failure rate

Pure mathematics is in its way, the poetry of logical ideas.

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. 

The bad news is time flies, the good new is that you're the pilot.

We learn more from failure than we do from success.

"I" not them. Be the best version of you.

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

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

I can is 100 times more important than IQ.