Demosthenes (384-322 BC) was a famous orator in Ancient Athens, a contemporary of Plato and Aristotle. Plutarch reports that Demosthenes had a speech impediment, and sought to improve his public speaking by talking whilst running, or with pebbles in his mouth. Like modern politicians, he employed professional speechwriters. During the war between Athens and Macedon Demosthenes made a great many speeches in support of Athens, which unsurprisingly led to trouble when the state was defeated by Philip of Macedon. Demosthenes was accused of embezzlement and exiled under Alexander the Great, Philip's son. After Alexander's death Demosthenes returned to Athens, but the state was invaded by Macedon again in 322, and, fearing arrest, Demosthenes committed suicide.