Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

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

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

The power of reflection is the most powerful skill you’ll learn.

The journey of a thousand miles begins with one step. 

Do what you have always done and you will always be what you have always been

Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

The master has failed more times than the beginner has even tried

Procrastination is the thief of time and the enemy of success.

Lose an hour in the morning and you will spend all day looking for it.

I can is 100 times more important than IQ.

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

We learn more from failure than we do from success.

It always seems impossible until it's done.

If you can understand just one thing thoroughly, then you will understand everything.