1968 Vintage Paperback,
from page 124 - "Your teachings are known. I understand them to mean that everything is always changing, that change is the substance of reality; ..."
Heraclitus thudded his wine mug on the table. "That's a mistake!" he growled. "I teach that everything in nature is always changing, that change is the substance of nature. But nature is not everything. How stupid can you get...? It is the essence of my philosophy that values are eternal! Take another slug of that wine: maybe it will brighten you up a little."
"I thought you said that one couldn't step into the same river twice, because the second time it would be different river."
Heraclitus quaffed deeply and then said thickly, "But I went on to teach that the riverness of the river was more important than the waterness of the water; and that, by the same token, the justness of justice was more permanent than the opinions of judges, and that one virtuous man was worth more than a thousand knaves. What bothers me is that my full meaning may not survive me; that posterity will be as obtuse as you, remembering only my sensational discoveries about nature and claiming falsely that I appplied the same thinking to the human soul."