I have been, all my life, what is known as a conservationist. It seems clear beyond possibility of argument that any given generation of men can have only a lease, not ownership, of the earth; and one essential term of the lease is that the earth be handed down on to the next generation with unimpaired potentialities. This is the conservationist's concern.
If I know what something's about, and I can always have that touchstone, I feel like I can reach for really ridiculous humor and also go really dark in terms of the things I'm afraid of.