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

A hero is no braver than an ordinary man, but he is braver five minutes longer.

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

Dreams don't work unless you do.

It always seems impossible until it's done.

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

Don’t practice until you get it right, practice until you can’t get it wrong.

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

Focus on progress, not perfection. Practise a little bit every day - little and often  Slow and steady wins the race.

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

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

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

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

Your limitation - its only your imagination.

Do what you have always done and you will always be what you have always been