Well that's a separate issue, Claudius. Yes, I'm also consider myself a rationalist and a secular humanist. I came to those positions before I discovered libertarian socialism and thus found much smarter people than myself who had also considered questions such as the one diablodelmar asked. The socialist ideas of mutual aid and mutual benefit arise from the same foundations as secular humanism and concepts of humanist ethics which don't require an outside supernatural source saying basically, "you must be good because I said so!"