James Prescott Joule

“My object has been, first to discover correct principles and then to suggest their practical development.”

“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.”

“It is evident that an acquaintance with natural laws is of the highest value to mankind.”

“The animal frame is a machine which is continually consuming combustible material.”

“After the knowledge of, and obedience to, the will of God, the next aim must be to know something of His attributes of wisdom, power, and goodness as evidenced by His handiwork.”

“Believing that the power to destroy belongs to the Creator alone, I affirm... that any theory which, when carried out, demands the annihilation of force, is necessarily erroneous.”

“The study of the phenomena of nature is one of the most sublime occupations of which the human mind is capable.”

“I shall lose no time in repeating and extending these experiments, being satisfied that the grand agents of nature are, by the Creator's fiat, indestructible.”