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

I'm either going to go completely mental, completely bankrupt, or have the best success of my life.

Success is the result of hard work.

I failed my way to success.

The biggest failure of man is that he gives up before he realizes how close he was to success.

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