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

Procrastination makes easy things hard and hard things harder.

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

Hard work - a two way street where you get exactly what you put in.

Practice makes comfort. Expand your experiences regularly so every stretch won't feel like your first.

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

It always seems impossible until it's done.

The wise person knows that no answer is also an answer

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

We learn more from failure than we do from success.

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

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

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

Go as far as you can see, when you get there, you’ll be able to see further

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