Ancient Grecian Aristotle (384-322 BC) is arguably the most famous philosopher of all time, and is often referred to only as "The Philosopher". He studied under Plato at The Academy and later taught Alexander the Great. He produced writings on a wide variety of subjects, including ethics, virtue, law, and human nature. Aristotle was more interested in data and scientific inquiry than his Greek predecessors, and considered the opinions of experts, ordinary citizens, and himself. He is still discussed in classrooms for a wide variety of disciplines.