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

Dreams don't work unless you do.

Never underestimate the importance of small steps. small steps = big changes. 

There are no bad mistakes in maths, only discoveries.

Fall down seven times, stand up eight.

Success is the sum of small repeated efforts, day in and day out.

I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

Just stick with it, what seems hard now will one day be your warm up.

I think, therefore I am.

In order to become better than anybody else you must first become better than yourself.

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

Hard work beats talent when talent doesn't work hard.

The easiest person to deceive is yourself.

Time is your friend, impulse is your enemy.

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