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

Procrastination is the thief of time and the enemy of success.

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

Skills are built not born.

Success is a journey, not a destination.

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

The temptation to quit will be the greatest when you are about to succeed

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

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

Lose an hour in the morning and you will spend all day looking for it.

The journey of a thousand miles begins with one step. 

The bad news is time flies, the good new is that you're the pilot.

The greatest enemy to human potential is your comfort zone

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

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.