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

Don’t hang your targets after you’re done shooting.

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

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

If you fail, next time fail better.

The journey of a thousand miles begins with one step.

You cannot start the next chapter of your life if you keep re-reading the last one.

The greatest enemy to human potential is your comfort zone

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

The greatest glory in loving lies not in never falling, but in rising every time we fall.

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

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

Yesterday is history, tomorrow is a mystery, but today is a gift—that's why it's called 'the present

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.

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