The journey of a thousand miles begins with one step.

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

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

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

There are no bad mistakes in maths, only discoveries.

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

Everything you want is on the other side of fear

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

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

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time. 

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

The wise person knows that no answer is also an answer

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