I have friends in overalls whose friendship I would not swap for the favor of the kings of the world.
The first requisite for success is the ability to apply your physical and mental energies to one problem incessantly without growing weary.
Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.
I have not failed. I’ve just found 10,000 ways that won’t work.
The doctor of the future will give us no medicine, but will interest his patients in the care of the human frame, in diet and in the cause and prevention of disease.
