It is, I believe, one of the few dangerous forms of eccentricity, a highly contagious mania, to be precise, of the rampant social variety! In your friend's case, we may not yet be dealing with out-and-out insanity . . . No . . . Maybe his trouble is only exaggerated conviction . . . But the contagious manias are well known to me! . . . I've known a good many sufferers from conviction mania . . . Of many different types . . . And in the last analysis, those who talk about justice seem to be the maddest of the lot! . . . At first, I must confess, I took a certain interest in justice fanatics . . . Today those particular maniacs annoy and exasperate me more than I can tell . . . Don't you feel the same way? . . . Human beings show a strange aptitude for transmitting this mania. It terrifies me, and we find it, mind you, in all human beings!

Author: Louis-Ferdinand Céline