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

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

Dreams don't work unless you do.

Time is your friend, impulse is your enemy.

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.

Failure to prepare = preparing to fail

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.

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

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

Success is not final, failure is not fatal.  It is the courage to continue that counts.

Don't fear failure, fear being in the same exact same place next year as you are now.

Don’t practice until you get it right, practice until you can’t get it wrong.

Tomorrow is worth more than yesterday but less than today.