““To Nature nothing can be added; from Nature nothing can be taken away; the sum of her energies is constant, and the utmost man can do in the pursuit of physical truth, or in the applications of physical knowledge, is to shift the constituents of the never-varying total. The law of conservation rigidly excludes both creation and annihilation. Waves may change to ripples, and ripples to waves; magnitude may be substituted for number, and number for magnitude; asteroids may aggregate to suns, suns may resolve themselves into florae and faunae, and floras and faunas melt in air: the flux of power is eternally the same. It rolls in music through the ages, and all terrestrial energy—the manifestations of life as well as the display of phenomena—are but the modulations of its rhythm.””
![“And by the influence of heat, light, and electrical powers, there is a constant series of changes [in animal and vegetal substances]; matter assumes new forms, the destruction of one order of beings tends to the conservation of another, solution and consolidation, decay and renovation, are…” quote by Humphry Davy](https://sms4smile.com/quotes/img-quotes/7a3/humphry-davy-13342_animal_and-by-the-influence-of-heat-light-and-e_2357578.jpg)
![“To him [Faraday], as to all true philosophers, the main value of a fact was its position and suggestiveness in the general sequence of scientific truth.” quote by John Tyndall](https://sms4smile.com/quotes/img-quotes/2ae/john-tyndall-33806_fact_to-him-faraday-as-to-all-true-philosophe_479803.jpg)
![“[Louis Rendu] collects observations, makes experiments, and tries to obtain numerical results; always taking care, however, so to state his premises and qualify his conclusions that nobody shall be led to ascribe to his numbers a greater accuracy than they merit. It is impossible to read his work…” quote by John Tyndall](https://sms4smile.com/quotes/img-quotes/387/john-tyndall-33806_church-appropriation_louis-rendu-collects-observations-makes_798339.jpg)
![“His [Faraday's] third great discovery is the Magnetization of Light, which I should liken to the Weisshorn among mountains-high, beautiful, and alone.” quote by John Tyndall](https://sms4smile.com/quotes/img-quotes/d05/john-tyndall-33806_discovery_his-faraday-s-third-great-discovery-is-t_1290958.jpg)
![“Underneath his sweetness and gentleness was the heat of a volcano. [Michael Faraday] was a man of excitable and fiery nature; but through high self-discipline he had converted the fire into a central glow and motive power of life, instead of permitting it to waste itself in useless passion.” quote by John Tyndall](https://sms4smile.com/quotes/img-quotes/185/john-tyndall-33806_discipline_underneath-his-sweetness-and-gentleness_2620116.jpg)
