Calculus ~ Leibniz and Newton

de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception

Happy Birthday, Gottfried Wilhelm von Leibniz!

He and Isaac Newton famously argued over who'd been the first to invent calculus. But both of them were important players in a long chain of mathematicians that, together, fostered other breakthroughs—such as E = mc^2.

Learn more: http://to.pbs.org/10LAwFH