In a two-volume book by the famous English scientist, Ph.D., professor, author of numerous works and monographs, Frederick Copleston analyzes the main directions of Greek and Roman philosophical thought. You will get acquainted with her first, sometimes rather naive ideas, learn or expand your knowledge about the philosophical systems of Thales, Anaximander, Pythagoras, Heraclitus, Parmenides, Zeno, Socrates, Plato and Aristotle, follow the emergence and development of many philosophical schools and trends. You will also be able to study the expansion of the influence of the Stoic school and the evolution of the last creative take-off of ancient thought, Plotinus' Neo-Platonism.The publisher's layout has been saved in a4.pdf format.