""A Sketch Of Ancient Philosophy From Thales To Cicero"" is a book written by Joseph B. Mayor that provides an overview of the philosophical ideas of ancient Greece and Rome. The book covers the period from the 6th century BC to the 1st century BC, which is considered the formative period of Western philosophy. The author presents the ideas of the major philosophers of this era, including Thales, Pythagoras, Heraclitus, Parmenides, Plato, Aristotle,...