Legatio Ad Gaium

And the reason of all this is, that we form our judgment of present events without paying any prudential attention to the future, being influenced by the erroneous guidance of our outward senses instead of the secret operations of the intellect; for the things which are openly conspicuous and before our hands so as to be taken up by them, are comprehended by our eyes, but our reasoning power outstrips them, hastening onwards to what is invisible and future; but nevertheless, we obscure the vision of our reason, though it is far more acute than those bodily powers of sight which are exercised by the eyes, some of us confusing it by indulgence in wine and satiety, and others by that greatest of all evils, namely, ignorance.