If you fail, next time fail better.

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

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

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

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

I can is 100 times more important than IQ.

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

Don’t compare yourself to others. Compare yourself to the person you were yesterday.

There is great wisdom in being able to realise that you don’t understand something before it goes too far.

There are no bad mistakes in maths, only discoveries.

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

The wise person knows that no answer is also an answer

We all have two lives. The second begins when we realise we only have one. 

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