When Mr. Utterson seeks Dr. Lanyon's advice, what does Lanyon say about Jekyll?

Lanyon told Utterson that he and Jekyll had a falling out over "unscientific balderdash" and that Jekyll had begun to go wrong in mind.

"Indeed?" said Utterson. "I thought you had a bond of common interest."

"We had," was the reply. "But it is more than ten years since Henry Jekyll became too fanciful for me. He began to go wrong, wrong in mind; and though of course I continue to take an interest in him for old sake's sake, as they say,

I see and I have seen devilish little of the man. Such unscientific balderdash," added the doctor, flushing suddenly purple, "would have estranged Damon and Pythias."