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

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

Procrastination makes easy things hard and hard things harder.

Don’t be afraid to work hard and find out how good you can really be.

The wise person knows that no answer is also an answer

Don't expect to be good at maths or understand things straight away. Be patient and persistent. The most powerful warriors are patience and time.

Knowledge is of no value unless you put it into practice.

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

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

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

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

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

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

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

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