 Even if the plausible basic schema for definitions of “morality” in the normative sense is accepted, one’s understanding of what morality is, in this sense, will still depend very significantly on how one understands rationality. As has already been mentioned, morality, in the normative sense, is sometimes taken to prohibit certain forms of consensual sexual activity, or the use of recreational drugs. But including such prohibitions in an account of morality as a universal guide that all rational persons would put forward requires a very particular view of rationality. After all, many will deny that it is irrational to favor harmless consensual sexual activities, or to favor the use of certain drugs for purely recreational purposes.