The journey of a thousand miles begins with one step. 

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

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

Failure to prepare = preparing to fail

Success is a journey, not a destination.

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

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

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

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

Patience is when you’re supposed to get mad, but you choose to understand

Start, struggle, fail, fix and learn. Repeat.

Go as far as you can see, when you get there, you’ll be able to see further

Don’t be afraid to work hard and find out how good you can really be.

If you can understand just one thing thoroughly, then you will understand everything.

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