Is it possible, however, that for example, in physical love, the
man[294] may experience a desire simultaneously with the corresponding
appetite? This is impossible, for two reasons. If we say that the man
begins to experience the desire, while the corresponding appetite
continues it, it is plain the man cannot experience a desire without
the activity of the appetite. If on the other hand it be the appetite
that begins, it is clear that it cannot begin being excited unless the
body first find itself in suitable circumstances, which is unreasonable.