But a man's best friend is the one who not only wishes him well but wishes it for his own sake (even though nobody will ever know it): and this condition is best fulfilled by his attitude towards himself - and similarly with all the other attributes that go to define a friend. For we have said before that all friendly feelings for others are extensions of a man's feelings for himself.
Certainly in terms of technology, it's made a tremendous impact, but medicine is still within the realm of what we might call "objective" science. It's still part of the objective way of looking at the world.