What! did you ever observe anything like the sun, the moon, or the five moving planets?
The sun, terminating his course in two extreme parts of one circle,[94] finishes his annual revolutions.

The moon, receiving her light from the sun, completes the same course in the space of a month.[95] The five planets in the same circle, some nearer, others more remote from the earth, begin the same courses together, and finish them in different spaces of time.

Did you ever observe anything like this, Epicurus?
So that, according to you, there can be neither sun, moon, nor stars, because nothing can exist but what we have touched or seen.[96] What! have you ever seen the Deity himself?
Why else do you believe there is any?
If this doctrine prevails, we must reject all that history relates or reason discovers; and the people who inhabit inland countries must not believe there is such a thing as the sea.

This is so narrow a way of thinking that if you had been born in Seriphus, and never had been from out of that island, where you had frequently been in the habit of seeing little hares and foxes, you would not, therefore, believe that there are such beasts as lions and panthers; and if any one should describe an elephant to you, you would think that he designed to laugh at you.
XXXII.

You indeed, Velleius, have concluded your argument, not after the manner of your own sect, but of the logicians, to which your people are utter strangers.