Don’t compare yourself to others. Compare yourself to the person you were yesterday.

You cannot escape the responsibility of tomorrow by evading it today

Never underestimate the importance of small steps. small steps = big changes. 

Hard work always pays off - it is not a question of if you will get there, but WHEN you will get there

Hard work - a two way street where you get exactly what you put in.

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

Life is full of opportunities. With every opportunity that is missed, another one is born.

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

Success is the sum of small repeated efforts, day in and day out.

Success can never happen without the journey (struggle).

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

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

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

There is no elevator to success, you have to take the stairs.

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