A speculative reasoner concerning triangles or circles considers the several known and given relations of the parts of these figures; and thence infers some unknown relation, which is dependent on the former.

But in moral deliberations we must be acquainted beforehand with all the objects, and all their relations to each other; and from a comparison of the whole, fix our choice or approbation.

No new fact to be ascertained; no new relation to be discovered.

All the circumstances of the case are supposed to be laid before us, ere we can fix any sentence of blame or approbation.

If any material circumstance be yet unknown or doubtful, we must first employ our inquiry or intellectual faculties to assure us of it; and must suspend for a time all moral decision or sentiment.