Squish Like Grape

The practice of inoculation--exposing a person to a mild case of an illness to build up an immunity--is possibly a thousand years old. Some evidence exists that 11th century Chinese physicians may have prevented the spread of smallpox by exposing people to pus from the sores of smallpox victims. There was a slight risk of actually giving a person smallpox through this form of inoculation, but it was a smaller risk than the much greater exposure they could get during an epidemic.

To hear some people talk, the growing popularity of solar energy is tantamount to a war on coal

More than a half century ago, philosopher Isaiah Berlin wrote a little essay he called The Hedgehog and the Fox. The title is based on a line from the ancient Greek poet Archilochus, "The fox knows many things, but the hedgehog knows only one big thing." Berlin used this as an analogy for how different writers and thinkers approach the world. Plato and Dante, for example, were hedgehogs, always keeping within one overarching framework. William Shakespeare, on the other hand, was a fox, exploring many ideas and themes throughout his writing career.