The undevout astronomer must be mad.

Seeing is in some respect an art, which must be learnt.

... finding that in [the Moon] there is a provision of light and heat; also in appearance, a soil proper for habitation fully as good as ours, if not perhaps better who can say that it is not extremely probable, nay beyond doubt, that there must be inhabitants on the Moon of some kind or other?

Since stars appear to be suns, and suns, according to the common opinion, are bodies that serve to enlighten, warm, and sustain a system of planets, we may have an idea of the numberless globes that serve for the habitaton of living creatures.

I have looked farther into space than ever a human being did before me.

The difference of the degrees in which the individuals of a great community enjoy the good things of life has been a theme of declaration and discontent in all ages.

The heavens are now seen to resemble a luxuriant garden, which contains the greatest variety of productions, in different flourishing beds.