"We hold these truths to be sacred and undeniable" in a draft of the Declaration of Independence changes it instead into an assertion of rationality. The scientific mind of Franklin drew on the scientific determinism of Isaac Newton and the analytic empiricism of David Hume and Gottfried Leibniz. In what became known as "Hume's Fork" the latters' theory distinguished between synthetic truths that describe matters of fact, and analytic truths that are self-evident by virtue of reason and definition.
Benjamin FranklinWhoever feels pain in hearing a good character of his neighbor, will feel a pleasure in the reverse. And those who despair to rise in distinction by their virtues, are happy if others can be depressed to a level of themselves.
Benjamin FranklinDon't think so much of your own Cunning, as to forget other Men's; a Cunning Man is overmatched by a cunning Man and a Half.
Benjamin FranklinAn iron rod being placed on the outside of a building from the highest part continued down into the moist earth, in any direction strait or crooked, following the form of the roof or other parts of the building, will receive the lightning at its upper end, attracting it so as to prevent it's striking any other part; and, affording it a good conveyance into the earth, will prevent its damaging any part of the building.
Benjamin Franklin