When you build an aquarium, construct it well, fill it with water, and revise it if it displeases you. Contemplate it in the daytime and at night. ONLY AFTER SOME TIME should you decide to put fish in it, for it is the aquarium, not you, that will decide which types of fish to place there.

Never begin by telling yourself that you want some goldfish, or some moon fish, or some angel fish, or some guppies. It never works out that way.