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

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

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

The journey of a thousand miles begins with one step. 

The road to success is like a staircase. If you want to succeed, double your failure rate

Practice makes comfort. Expand your experiences regularly so every stretch won't feel like your first.

The master has failed more times than the beginner has even tried

Skills are built not born.

I think, therefore I am.

Tough times never last, but tough people do.

Just stick with it, what seems hard now will one day be your warm up.

Time is your friend, impulse is your enemy.

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

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 journey of a thousand miles begins with one step.