I think it was John Locke who said you can never be sure that it's not the devil that you were talking to.
"..All life is the struggle, the effort to be itself. The difficulties I meet with in order to realise my existence are precisely what awaken and mobilise my activities, my capacities.."GASSET"..For enjoyment and innocence are the most modest things: neither want to be looked for. One should have them-but one should look rather for guilt and pain!.."NIETZSCHE"..The struggle itself toward the heights is enough to fill a man's heart.." CAMUS