"Go not to the                            Elves for counsel,
 for they will say                            both no and yes.
 Elves seldom give unguarded                            advice,
 for advice is a                            dangerous gift,
 even from the wise                            to the wise,
 and all courses may                            run ill."

 "But what would you?"                           

 "You have not told                            me all concerning yourself;
 and how then shall                            I choose better than you?"

 [Gildor says this in                            response to Frodo]
 -J. R. R. Tolkien,                            The Lord of the Rings