A simple recipe

Re Einstein’s relativity theory of 1905:

The new theory is based  in its entirety  on two postulates:

 1.  The laws of physics take the same form in all inertial frames.

 2. In any given inertial frame, the velocity of light is the same  whether the light be emitted by a body at rest  or by a body in uniform motion.

-- Abraham Pais, Subtle is the Lord (1982), p. 141

A simple recipe -- but which requires some care in the baking !

[For our own essay at minimalist postulationism, try:  

Theologia mathematica. ]