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

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

If you fail, next time fail better.

A book a day keeps the stupidity away.

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

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

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.

The wise person knows that no answer is also an answer

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

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

I think, therefore I am.

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

It doesn’t matter where you start, it matters how you end

Run in the morning before your body figures out what you're doing

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.