It’s obvious,” my brother said. “A southerly wind is a wind that’s blowing toward the South.” I tried to protest. He rushed out and picked up a dictionary, returning with the gleeful smugness of the elder brother. “Read it and weep!” he said. When I read aloud the final phrase of the dictionary entry: “concerning winds, southerly means from a southern direction” he grabbed the book from me. He read the entry again, blinking in disbelief before stalking off dejectedly. He couldn’t accept the truth at first, even after reading it for himself. He had been convinced that he was right.…