3.4 AnonymousAnother philosopher believed that love is an illusion (幻觉). In his view, people fall in love because they believe having a mate will make them happy. But in fact, this is just a biological trick (诡计) only to make us have children. Once we have children, we are right back to where we started. This is obviously what nature intends, since we have children to preserve (保留) our species (物种), But in the end it leaves us still searching for more.