I cannot forbear adding to these reasonings an observation, which may, perhaps, be found of some importance. In every system of morality, which I hav… - David Hume

I cannot forbear adding to these reasonings an observation, which may, perhaps, be found of some importance. In every system of morality, which I have hitherto met with, I have always remark’d, that the author proceeds for some time in the ordinary way of reasoning, and establishes the being of a God, or makes observations concerning human affairs; when of a sudden I am surpriz’d to find, that instead of the usual copulations of propositions, is, and is not, I meet with no proposition that is not connected with an ought, or an ought not. This change is imperceptible; but is, however, of the last consequence.

"The worst speculative Sceptic ever I knew, was a much better Man than the best superstitious Devotee & Bigot."
"I must inform you, too, that this was the way of thinking of the Antients on this Subject. If a Man made Proffession of Philosophy, whatever his Sect was, they alaways expected to find more Regulaity in his Life and Manners, than in those of ignorant & illiterate."

There is an inconvenience which attends all abstruse reasoning. That it may silence, without convincing an antagonist, and requires the same intense study to make us sensible of its force, that was at first requisite for its invention. When we leave our closet, and engage in the common affairs of life, its conclusions seem to vanish, like the phantoms of the night on the appearance of the morning; and 'tis difficult for us to retain even that conviction, which we had attain'd with difficulty.

In public affairs men are often better pleased that the truth, though known to everybody, should be wrapped up under a decent cover than if it were exposed in open daylight to the eyes of all the world.