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

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

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

We are all maths people : step 1 - do maths and step 2 - be a person. 

You cannot escape the responsibility of tomorrow by evading it today

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

The journey of a thousand miles begins with one step. 

Fall down seven times, stand up eight.

Dreams don't work unless you do.

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 journey of a thousand miles begins with one step.

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

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

I think, therefore I am.

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