Maxwell's first equation says divergence of D
Is equal to the enclosed charge density
Or the surface flux can be obtained
If we integrate rho over V

Law two says circulation of E dot dl
Is the minus time derivative of the integral
Of the magnetic field through the surface
That's bounded by C

The third law is simpler than anyone thought
If you integrate B.dS you get nought
The divergence of B is just zero
So that's all we say

And finally, c^2 times circulation of B
Is d/dt of the surface integral of E
Plus one on e-nought times the surface integral of J