Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

Don't fear failure, fear being in the same exact same place next year as you are now.

99% of failures come from people who have the habit of making excuses.

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

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

Your attitude is everything. Pick a good one.

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

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

Don’t confuse your path with your destination. Just because its stormy now doesn’t mean you are headed for failure.

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

If you fail, next time fail better.

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

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

Instead of finding reasons why you can't, find reasons why you can.

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