Heraclitus is thought to have written one book, which is now lost. His views survive in the short fragments quoted and attributed to him by later authors, such as his famous analogy of life to a river: “Upon those who step into the same rivers, different and ever different waters flow down.”
What did Heraclitus write?
Why is Heraclitus important?
Heraclitus was a Greek philosopher who is remembered for his cosmology, in which fire forms the basic material principle of an orderly universe. Viewing fire as the essential material uniting all things, Heraclitus wrote that the world order is an “ever-living fire kindling in measures and being extinguished in measures.”