The first requisite for success is the ability to apply your physical and mental energies to one problem incessantly without growing weary.Thomas Edison
The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense.Thomas Edison
Being busy does not always mean real work. The object of all work is production or accomplishment and to either of these ends there must be forethought, system, planning, intelligence, and honest purpose, as well as perspiration. Seeming to do is not doing.Thomas Edison
Opportunity is missed by most people because it is dressed in overalls and looks like work.Thomas Edison
I never did anything by accident, nor did any of my inventions come by accident; they came by work.Thomas Edison
It is astonishing what an effort it seems to be for many people to put their brains definitely and systematically to work.Thomas Edison
I find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.Thomas Edison