The assignment was a two-page essay, in Greek, on any epigram of Callimachus that we chose. I'd done only a page and I started to hurry through the rest in impatient and slightly dishonest fashion, writing out the English and translating word by word. It was something Julian asked us not to do. The value of Greek prose composition, he said, was not that it gave one any particular facility in the language that could not be gained as easily by other methods but that if done properly, off the top of one's head, it taught one to think in Greek. One's thought patterns become different, he said, when forced into the confines of a rigid and unfamiliar tongue. Certain common ideas become inexpressible; other, previously undreamt-of ones spring to life, finding miraculous new articulation.