James Edward Preston Muddock, The Sunless City — Chapter VII (1905)
“ Much as Flin Flon would have like to have descended further into the gulf he felt that it would not be prudent. For enthusiast as he was, he was not --- as some scientific men are --- entirely wanting in those principles which teach that "discretion is the better part of valour." The discoveries he had already made were too valuable for him to risk his life in any foolhardy manner. He was quite willing to lay his life down if needs be for the benefit of the world in which he lived. ”
