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

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

Don't fear failure, fear being in the same exact same place next year as you are now.

Your attitude is everything. Pick a good one.

Everything you want is on the other side of fear

I can is 100 times more important than IQ.

Time is your friend, impulse is your enemy.

The journey of a thousand miles begins with one step. 

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

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. 

There are no bad mistakes in maths, only discoveries.

There are no shortcuts to any place worth going.

Skills are built not born.

Shoot for the moon and even if you miss you’ll land among the stars/

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