Zeno (490 – 430 B. C.)

Pythagoras (580 – 496 B. C.)

Xenophanes (570 – 477 B. C.)

Anaximenes (585 – 528 B. C.)

Anaximander (610 – 546 B. C.)

Thales (624 – 543 B. C.)

The First Steps Of Philosophy

Man Is The Measure

Space and Time