Plotinos: Complete Works, v. 4 In Chronological Order,...

Is it possible, however, that for example, in physical love, the man294 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.