Word: cautions
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Despite Goldin's caution about assuming the existence of Earthlike planets, few astronomers doubt they are out there. If other solar systems do contain Earthlike worlds, says NASA exobiologist Michael Meyer, at least some should fall into the "habitable zone"--the region, governed by a planet's distance from its star, where water is liquid rather than solid or gaseous. "The good news," he says, "is that if our solar system is typical, there's a 50% chance that a planet will be in the right zone...
Gingrich has coupled his own campaign for power with the recognition that conservative skepticism was not a sufficiently upbeat message. In chronically optimistic America, he needed something more upon which to build a mass movement. In place of the old conservative caution, Gingrich, one of the most absorbent if not always discriminating minds in national politics, has concocted a stew of beliefs that blends the sunny economics of Ronald Reagan and Jack Kemp, the stern moralism of the Christian right and enough giddy futurism either to excite or to frighten his followers. He dubbed himself a "conservative revolutionary...
Military and civilian authorities caution that Fort Bragg, with a population of 75,000, is virtually a small city. Says Major Rivers Johnson Jr., a spokesman for the 82nd Airborne Division: "You've got to understand that the 82nd Airborne is a reflection of society." Referring to the suspects, a local police officer says, "These guys are just idiots...
Researchers speculate that nitric oxide may effect the emotion-regulating areas of the brain, perhaps by putting the brakes on aggressive male behavior. Could a lack of nitric oxide help explain violent impulses in humans? Scientists caution against making facile comparisons. But they are watching the mad mice of Baltimore closely, looking for clues to treating similar behavior in humans...
Kawachi advised caution before taking action based on his report...