So even though he had to die for these pretty spurious allegations, his legacy lives on. And it lives on most famously in his student Plato. Now Plato is famous for many things. There's this notion of a platonic ideal form that whether you're talking about a circle or a ball or a dog or a chair, that there's an ideal form that is independent of what your senses are telling you or what the chair in front of you might be. But that's an imperfect version of that ideal form. The word platonic in general, you'll hear, applied to many different concepts, some of the meanings having changed over time. The other thing that Plato is famous for is the notion of an academy, the place where he taught his students was a little field outside the walls of Athens named for the Athenian hero Akademos.