And God said... ∯ E⃗ ∂s⃗ = Q/ε∘ ∯ B⃗ ∂s⃗ = 0 ∮ E⃗ ∂ℓ⃗ = ∯ ∂B⃗ / ∂t ∮ H ∂ℓ⃗ = i + ε(∂B⃗ / ∂t) ... and there was light.