Success is the product of the severest kind of mental and physical application.

Thomas Alva Edison

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 based on imagination plus ambition and the will to work.

My success is due more to my ability to work continuously on one thing without stopping than to any other single quality.

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

The first requisite for success is to develop the ability to focus.

Dalai LamaSpiritual Leader

Elon MuskBusinessman