"In Phebus realm, in knowledge as in verse, All things are clear, the sun of Phoebus clear, Clear was his crystal, the Kastalian. What you cannot clearly say, you don’t know: To tongue of man his thought brings word: What’s said obscurely is what’s thought obscurely."
January 1, 1970
https://en.wikiquote.org/wiki/Esaias_Tegn%C3%A9r