If there is any reason to single out artists as being more necessary to our lives than any others, it is because they provide us with light that cannot be extinguished. They go into dark rooms and poke at their souls until the contours of our own are familiar to us.
Rearing three children is like growing a cactus, a gardenia, and a tubful of impatiens. Each needs varying amounts of water, sunlight and pruning. Were I to be absolutely fair, I would have to treat each child as if he or she were absolutely identical to the other siblings, and there would be no profit for anyone in that.