Bottled water is significantly more expensive than tap, but a middle-ground option might be purified tap water, which combines safety with affordability.

"And today, Syria is going to be purified by the grace of God."

Paradoxically, by the yardstick of the 19th century, Pratt was considered an “Indian lover,” a champion and defender of Native Americans — but in a purified, Americanized incarnation.

Beta cells are isolated from a donor pancreas, purified and delivered to the patient's liver, where they can take up residence and begin secreting insulin.

However, they rely on starch being extracted from plant cells and purified, a process requiring much energy and water.