Failure is not the opposite of success, it is part of the success.

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

We learn more from failure than we do from success.

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

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

Hard work beats talent when talent doesn't work hard.

We are all maths people : step 1 - do maths and step 2 - be a person. 

You're not in competition with anyone but yourself. Outdo your past, not other people.

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

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

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

I have not failed, I've just found 10,000 ways that won't work.

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

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

The journey of a thousand miles begins with one step.