The philosophical discussion regarding love logically begins with questions concerning its nature. This implies that love has a “nature,� a proposition that some may oppose arguing that love is conceptually irrational, in the sense that it cannot be described in rational or meaningful propositions. For such critics, who are presenting a metaphysical and epistemological argument, love may be an ejection of emotions that defy rational examination; on the other hand, some languages, such as Papuan, do not even admit the concept, which negates the possibility of a philosophical examination. In English, the word “love,� which is derived from Germanic forms of the Sanskrit lubh (desire), is broadly defined and hence imprecise, which generates first order problems of definition and meaning, which are resolved to some extent by the reference to the Greek terms, eros, philia, and agape.