Doctors are men who prescribe medicines of which they know little, to cure diseases of which they know less, in human beings of whom they know nothing.
To work without attachment is to work without the expectation of reward or fear of any punishment in this world or the next. Work so done is a means to the end, and God is the end.
And I'm very surprised that all this stuff actually worked out to where I could have a career in film, gain the benefit of my education, and be thankful that I was able to break into my craft as an actor.