Success is the result of hard work.

Success is 90% perspiration and 10% inspiration!

There's always gonna be another mountain, I'm always gonna wanna make it move, Always gonna be a uphill battle, Sometimes I'm gonna have to lose, Ain't about how fast I get there, Ain't about what's waiting on the other side, It's the climb.

The first requisite of success is the ability to apply your physical and mental energies to one problem without growing weary.

I never failed once. It just happened to be a 2000-step process.

Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success.