E = MC^2

So, as science has progressed, it has been necessary to invent other forms of energy, and indeed an unfriendly critic might claim, with some reason, that the law of conservation of energy is true because we make it true by assuming the existence of forms of energy for whichthere is no other justification than the desire to retain energy as a conservative quantity.
– Kenneth S. Pitzer

What is astonishing in the realm of science is the opposite of what is astonishing in the art of the conjurer. For the latter wants to persuade us to see a very simple causality where in truth a very complicated causality is at work. Science, on the contrary, compels us to abandon belief in simple causalities precisely where everything seems so easy to comprehend and we are the fools of appearance. The ‘simplest’ things are very complicated—a fact at which one can never cease to marvel!
– Friedrich Nietzsche

Physics and Science ?? It has progressed a lot in terms of fabrications of lots of systems, machineries, level of sofistication has increased manifolds in terms of computation! Also people have successfully defined the theory of stars, blackholes etc etc...BUT !!!! It is equally true that
-there wasn't any equation given after Einstein's E = MC^2 which is EQUIVALENT in QUALITY and SIMPLICITY !!

- Rohit Malshe