KPFA's Jack Foley leads with:

“Interpretation should proceed from the clear into the obscure.” —Martin Heidegger

That's from Plato's Sophist, p. 8.

I've been working on an app to make the first 1/3 of that lecture course (the good bits) easier to read. I've added the German and English text, and I'm currently working on the Greek glossary. More than 900 words as of last night.