30 Phil, Chapter 7: Heraclitus and Your Worldview
Chapter 7 in part one transitions from Eastern luminaries to their counterparts in the West. The pre-Socratic philosophers, guided by a new rational perspective, challenged the stronghold of mythology, and propelled human thought onto a trajectory marked by reason. Little is known for sure about Heraclitus. Born around 535 BCE, stories indicated he lived about 60 years.

• Everything is in Flux.
• No man ever steps in the same river twice.

Pictured: Bust of an unknown philosopher. Some believe this might be Heraclitus. This bust is in the Capitoline Museum in Rome, but the museum makes no such identity assumption.