内容简介：
Seems to me, said Cap'n Bill, as he sat beside Trot under the big acacia tree, looking out over the blue ocean, "seems to me, Trot, as how the more we know, the more we find we don't know." "I can't quite make that out, Cap'n Bill," answered the little girl in a serious voice, after a moment's thought, during which her eyes followed those of the old sailor-man across the glassy surface of the sea. "Seems to me that all we learn is jus' so much gained."