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

If you fail, next time fail better.

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

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

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

If you really want something you’ll find a way. If you don’t you’ll find an excuse.

There are no shortcuts to any place worth going.

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

There are no bad mistakes in maths, only discoveries.

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

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

Whenever you find yourself doubting how far you can go, just remember how far you have come.

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. 

99% of failures come from people who have the habit of making excuses.

Success can never happen without the journey (struggle).