I was performing skin grafts and became interested in why skin wouldn't graft permanently.

It is probably no exaggeration to suppose that in order to improve such an organ as the eye at all, it must be improved in ten different ways at once. And the improbability of any complex organ being produced and brought to perfection in any such way is an improbability of the same kind and degree as that of producing a poem or a mathematical demonstration by throwing letters at random on a table.

You cannot stop the human mind from working.

One of my surgical giant friends had in his operating room a sign "If the operation is difficult, you aren't doing it right." What he meant was, you have to plan every operation You cannot ever be casual You have to realize that any operation is a potential fatality.

Its the best time ever to be a doctor because you can heal and treat conditions that were untreatable even a few years ago.

Animal experimentation has been essential to the development of all cardiac surgery, transplantation surgery, joint replacements and all vaccinations.

I tell [medical students] that they are the luckiest persons on earth to be in medical school, and to forget all this worry about H.M.O.'s and keep your eye on helping the patient. It's the best time ever to be a doctor because you can heal and treat conditions that were untreatable even a couple of years ago.