Thomas A. Edison : (5)

" The doctor of the future will give no medicine but will instruct his patient in the care of the human frame, in diet, and the cause and prevention of disease. " - Thomas A. Edison

" The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense. " - Thomas A. Edison

" There is no substitute for hard work. " - Thomas A. Edison

" We don’t know a millionth of one percent about anything. " - Thomas A. Edison

" I never did a day’s work in my life. It was all fun. " - Thomas A. Edison