Focus on progress, not perfection. Practise a little bit every day - little and often  Slow and steady wins the race.

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

It is never too late to turn an unproductive day into a productive one.

Time is your friend, impulse is your enemy.

You can hire a tutor but you can't hire someone to practice for you.

You'll never change your life until you change something you do daily. The secret to success and change in found in your daily routine.

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 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.

I think, therefore I am.

There are no bad mistakes in maths, only discoveries.

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

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

Hope might be a good breakfast, but it makes a very poor dinner

The journey of a thousand miles begins with one step.