20. And, that we may show you more clearly and distinctly what is the worth of man, whom you believe to be very like the higher power, conceive this idea; and because it can be done if we come into direct contact with it, let us conceive it just as if we came into contact. Let us then imagine a place dug out in the earth, fit for dwelling in, formed into a chamber, enclosed by a roof and walls, not cold in winter, not too warm in summer, but so regulated and equable that we suffer neither cold [3537] nor the violent heat of summer. To this let there not come any sound or cry whatever, [3538] of bird, of beast, of storm, of man--of any noise, in fine, or of the thunder's [3539] terrible crash. Let us next devise a way in which it may be lighted not by the introduction of fire, nor by the sight of the sun, but let there be some counterfeit [3540] to imitate sunlight, darkness being interposed. [3541] Let there not be one door, nor a direct entrance, but let it be approached by tortuous windings, and let it never be thrown open unless when it is absolutely necessary.