"And every one of those wrong things is a corollary of 'jealousy.' Jubal, I couldn't believe it.  I still don't grok 'jealousy' in fullness, it seems an insanity to me, a terrible wrongness.  When I first learned what this ecstasy was, my first thought was that I wanted to share it, share it at once with all my water brothers - directly with those female, indirectly by inviting more sharing with those male.  The notion of trying to keep this never-failing fountain to myself would have horrified me, had I thought of it.  But I was incapable of thinking of it.  And in perfect corollary I had not the slightest wish to attempt this miracle with anyone I did not already love and trust - Jubal, I am physically unable even to attempt love with a female who has not already shared water with me.  And this same thing runs all through the Nest.  Psychic impotence unless our spirits blend as our flesh blends."