"I call special attention to the fact that it is only our universal suicide which would prove a panacea for all the ills our ' flesh is heir to j individual suicides can do little or no good, save to the individuals themselves; Thus true philosophers may rationally and generously deny themselves the luxury of self-murder, because their death must leave the human average still worse than it is; and, besides, death’s coming is so certain and (at farthest) so near, that it is scarcely worth while to put one’s self out of breath hastening to meet him."
January 1, 1970
https://en.wikiquote.org/wiki/James_Thomson_(poet%2C_born_1834)