Men have had the vanity to pretend that the whole creation was made for them, while in reality the whole creation does not suspect their existence.

Lightning seems a thought, which instead of being attached to a brain, is attached to an electric current.

May we attribute to the color of the herbage and plants, which no doubt clothe the plains of Mars, the characteristic hue of that planet, which is noticeable by the naked eye, and which led the ancients to personify it as a warrior?

The universe is so immense that it appears immutable, and that the duration of a planet such as that of the earth is only a chapter, less than that, a phrase, less still, only a word of the universe’s history.

Le Verrier-without leaving his study, without even looking at the sky-had found the unknown planet [Neptune] solely by mathematical calculation, and, as it were, touched it with the tip of his pen!

The present inhabitation of Mars be a race superior to ours is very probable.

What, then, is this blue sky, which certainly does exist, and which veils from us the stars during the day?