was born in Elea, Italy, in 490 B.C. He died there in 430 B.C., in an attempt to oust the city's tyrant. He was a noted pupil of Parmenides, from whom he learned most of his doctrines and political ideas. He believed that what exists is one, permanent, and unchanging. Zeno argued against multiplicity and motion. He did so by showing the contradictions that result from assuming that they were real. His argument against multiplicity stated that if the many exists, it must be both infinitely large and infinitely small, and it must be both ....