Empedocles (490–430 BCE)

Regarded the natural world as the result of constant mingling and separation of four basic elements.

Whereas Thales said "all is water" and Heraclitus said "all is fire", Empedocles said "all is fire, water, earth and air".

What links here

• Gorgias (483–375 BCE)
• Timeline of people born
• Heraclitus (535–475 BCE)
• Aristotle (384–322 BCE)