Ancient philosophy covers almost a thousand-year period of history. It originated in ancient Greece in the middle of the I millennium BC and gave way to another – medieval philosophy after the collapse of the Roman Empire – by the VI century AD. A distinctive feature of ancient philosophy is the formation of a new way of spiritual expression, which already among the first ancient philosophers acquired a coherent logical form and is characterized by a rational comprehension of the world. This is how ancient philosophy differs significantly from Eastern wisdom.