Vibrators are luxuries, not necessities. A fire extinguisher is a necessity. Don't confuse the two functions: orgasms aren't necessary for survival, putting out fires definitely are.

I rather like Khalil Gibran myself - I read The Prophet when I was younger and found the mysticism spiritualizing. Sartre I want to read because it IS a classic, and I figure I should read classics to see why they remain so.