Henry Adams Quotes
If Thought is capable of being classed with Electricity, or Will with chemical affinity, as a mode of motion, it seems necessary to fall at once under the second law of thermodynamics as one of the energies which most easily degrades itself, and, if not carefully guarded, returns bodily to the cheaper form called Heat. Of all possible theories, this is likely to prove the most fatal to Professors of History.
Adams, Henry. A Letter to American Teachers of History. J.H. Furst Company, 1910, p. 111.
This very famous quotation says that the total amount of energy in a system always remains the same. It may, change from one form to another like heat to light, but it is always there in one form or another.
Henry Brooks Adams was an American historian and a member of the Adams political family, descended from two U.S. Presidents.