General Quotes - page 92
On another occasion, I decided to give Konev, who liked to hunt, a custom-built rifle, with a silver plate on the stock inscribed "To Marshal Konev, from his friend, General Clark." I wasn't sure he would get it if I simply delivered it to his headquarters, so I had an officer take it to him. I didn't even get an acknowledgement from Konev, although I saw him on several official occasions. Finally, about three weeks after I had sent the gun, I walked to lunch with him after the commissioners' meeting. Speaking through an interpreter, I asked if he had received the gun. "Yes". "Ask the marshal whether he liked it." "Yes". "I just wondered," I said. "I hadn't received any acknowledgement."
Mark W. Clark
Many facts have lately transpired which tend to overthrow the hypothesis that heat is itself a body, and to prove that it consists in a motion of the ultimate particles of bodies. If this be so, the general principles of mechanics may be applied to heat; this motion may be converted into work, the loss of vis viva in each particular case being proportional to the quantity of work produced.
These circumstances, of which Carnot was also well aware, and the importance of which he expressly admitted, pressingly demand a comparison between heat and work, to be undertaken with reference to the divergent assumption that the production of work is not only due to an alteration in the distribution of heat, but to an actual consumption thereof; and inversely, that by the expenditure of work, heat may be produced.
Rudolf Clausius