Fire destroys all sophistry, that is deceit; and maintains truth alone, that is gold. - Leonardo da Vinci

If you wish to make an imaginary animal invented by you appear natural, let us say a dragon, take for the head that of a mastiff or hound, for the eyes a cat, and for the ears a porcupine, and for the nose a greyhound, and the brows of a lion, the temple of an old cock, the neck of a terrapin

I ask how far away the eye can discern a non-luminous body, as, for instance, a mountain. It will be very plainly visible if the sun is behind it; and could be seen at a greater or less distance according to the sun's place in the sky.

My body is not a tomb for other creatures.