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

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

The greatest mistake we make is living in constant fear that we will make one.

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

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

Time is your friend, impulse is your enemy.

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

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

99% of genius comes from hard work, the remaining 1% comes from innate talent

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

No one starts out on top. You have to work your way up.

Fall down seven times, stand up eight.

The journey of a thousand miles begins with one step. 

The easiest person to deceive is yourself.

Tomorrow is worth more than yesterday but less than today.