Charles Krauthammer’s joining the ranks of Daily Times columnists pleased readers on the right who like his generally — though not invariably — conservative views. Those on the left are less than thrilled. I have my own reason for welcoming the doctor (he practiced and taught psychiatry before switching to speechwriting and then to commentary): He’s one of the endangered species called wordsmiths. Like master artisans working precious metals, wordsmiths shape and polish lumps of words until they gleam. Krauthammer on America’s limited activity in space: “We’ve done it with the most beautiful, intricate, complicated — and ultimately hopelessly impractical...