Aristotle was famous for knowing everything. He taught that the brain exists merely to cool the blood and is not involved in the process of thinking. This is true only of certain persons. Will Cuppy
Spare your breath to cool your porridge. Miguel de Cervantes
Said Periander, "Hesiod might as well have kept his breath to cool his pottage." Plutarch
All I know about thermal pollution is that if we continue our present rate of growth in electrical energy consumption it will simply take, by the year 2000, all our freshwater streams to cool the generators and reactors. David R. Brower
If you wait for the roasted liver to cool it will get cold in someone else's mouth. African Proverb
Keep your breath to cool your crowdie. Scottish Proverb