“When in doubt about drinking from an unknown spring look for life. If the water is scummed with algae, crawling with worms, grubs, larvae, spiders and liver flukes, be reassured, drink hearty, you’ll get nothing worse than dysentery. But if it appears innocent and pure, beware.”

“When in doubt about drinking from an unknown spring look for life. If the water is scummed with algae, crawling with worms, grubs, larvae, spiders and liver flukes, be reassured, drink hearty, you’ll get nothing worse than dysentery. But if it appears innocent and pure, beware.”

— Edward Abbey