 even though a person does not experience every single individual, but only a great many, nor does he experience them at all times, but only frequently, still be knows infallibly that it is always this way and holds for all instances. He knows this in virtue of this proposition reposing in his soul: “Whatever occurs in a great many instances by a cause that is not free, is the natural effect of that cause.” (Scotus Ord. I dist. 3, pars 1, qu. 4)