“The total energy of the universe is constant and the total entropy is continually increasing.”— Hermann von Helmholtz
“The grand agents of nature are, by the Creator's fiat, indestructible; and that whenever mechanical force is expended, an exact equivalent of heat is always obtained.”— James Prescott Joule
“I see no sufficient reason why we may not conclude that all elastic fluids under the same pressure expand equally by heat.”— John Dalton
“The 2nd law of thermodynamics has the same degree of truth as the statement that if you throw a tumblerful of water into the sea, you cannot get the same tumblerful of water out again.”— James Clerk Maxwell
“The very existence of the second law of thermodynamics, the great law of increasing entropy, is a powerful evidence for creation.”— Henry M. Morris
“I was encouraged by the discovery of Carnot's law which established the relation between heat and mechanical work, and this law in connection with the principles of the conservation of energy, gave the first foundation for the theoretical treatment of the subject.”— Hermann von Helmholtz
“The second law of thermodynamics is, without doubt, one of the most perfect laws in science.”— Gilbert Newton Lewis
“Nothing in life is certain except death, taxes, and the second law of thermodynamics.”— Seth Lloyd