A propensity to wanton destruction of what is beautiful in inanimate nature (spiritus destructionis) is opposed to a human being's duty to himself; for it weakens or uproots that feeling in him which, though not of itself moral, is still a disposition of sensibility that greatly promotes morality or at least prepares the way for it: the disposition, namely, to love something (e.g., beautiful crystal formations, the indescribable beauty of plants) even apart from any intention to use it.
[Immanuel Kant, The Metaphysics of Morals, Book I, Chapter II, Episodic Section, sect. 17, in Immanuel Kant, Practical Philosophy, Gregor, tr. & ed. Cambridge University Press (New York: 1996) p. 564.]