As the philosopher Plato put it in an indelicate phrase, ‘What the Greeks borrow from foreigners, they perfect.’ What they perfected has given us so much, for example Hippodamus, the father of urban planning; the great philosophers such as Aristotle; in medicine, Hippocrates; in mathematics, Pythagoras; and the world’s first known female mathematician, Hypatia. An estimated 150,000 English words derive from Greek, democracy, acrobat and sarcasm among them.