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

Tough times never last, but tough people do.

"I" not them. Be the best version of you.

Pure mathematics is in its way, the poetry of logical ideas.

Fall down seven times, stand up eight.

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

Our fixed mindset builds our cage, fear keeps us in it.

You cannot escape the responsibility of tomorrow by evading it today

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

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

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

Success is a journey, not a destination.

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

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

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