Contrary to what you may assume, I am not a pessimist but an indifferentist- that is, I don't make the mistake of thinking that the... cosmos... gives a damn one way or the the other about the especial wants and ultimate welfare of mosquitoes, rats, lice, dogs, men, horses, pterodactyls, trees, fungi, dodos, or other forms of biological energy.

Selected Letters (ed. 1971)