"All our obligations to do good to society seem to involve doing something in return: I get the benefits of society, so I ought to promote its interests. But when I withdraw myself altogether from society, can I still be obliged to serve it? And even if our obligations to do good did last for ever, they certainly have some limits; I am not obliged to do a small good to society at the expense of a great harm to myself; so why should I prolong a miserable existence because of some trivial advantage that the public may perhaps receive from me? Suppose I am old and unwell: can’t I lawfully resign from whatever jobs I have, and spend all my time coping with these calamities and doing what I can to reduce the miseries of my remaining years? If so, why isn’t it lawful for me to cut short these miseries at once by suicide, an action that does no more harm to society? Now try three other suppositions. Suppose that I am no longer able to do any good for society, or that I am a burden to society, or that my life is getting in the way of some other person’s being much more useful to society. In such cases it must be not only lawful but praiseworthy for me to take my own life. And most people who are at all tempted to commit suicide are in some such situation; those who have health, or power, or authority, usually have better reason to be on good terms with the world."