My Father, the Captain Quotes

“Those masks had a tendency to fog. To prevent this, we learned to rub a raw potato against the glass. We learned this from my father, who had discovered the trick by some chance or other. Unfortunately, we didn’t always have a raw potato at hand when we were at sea, so we figured out that human saliva worked just as well. That’s why, even today, you see divers all over the world, enjoying the most sophisticated equipment, still spitting into their masks before fitting them in place. It’s the best, simplest precaution—and it costs far less than any of the products on the market designed to do the same thing. Plus, it certainly beats a raw potato.”
― Jean-Michel Cousteau, My Father, The Captain - My Life With Jacques Cousteau