“The experimental investigation by which Ampere established the law of the mechanical action between electric currents is one of the most brilliant achievements in science. The whole theory and experiment, seems as if it had leaped, full grown and full armed, from the brain of the 'Newton of Electricity'. It is perfect in form, and unassailable in accuracy, and it is summed up in a formula from which all the phenomena may be deduced, and which must always remain the cardinal formula of electro-dynamics.”
![“One of the chief peculiarities of this treatise is the doctrine that the true electric current, on which the electromagnetic phenomena depend, is not the same thing as the current of conduction, but that the time-variation of the electric displacement must [also] be taken into account...” quote by James Clerk Maxwell](https://sms4smile.com/quotes/img-quotes/a93/james-clerk-maxwell-10636_accounts_one-of-the-chief-peculiarities-of-this-t_567321.jpg)
![“We shall see that the mathematical treatment of the subject [of electricity] has been greatly developed by writers who express themselves in terms of the 'Two Fluids' theory. Their results, however, have been deduced entirely from data which can be proved by experiment, and which must therefore be…” quote by James Clerk Maxwell](https://sms4smile.com/quotes/img-quotes/986/james-clerk-maxwell-10636_being-true_we-shall-see-that-the-mathematical-treat_1591804.jpg)
