囧, did you translate it yourself= =|||. 1, 2.TO A GREAT MIND, NOTHING IS LITTLE. (To a great man, nothing is insignificant) Both are from "A Study in Scarlet" - the two sentences are not far apart, but which part is it? I don't remember. But it seems that it was there before Fu asked Wiggins and the others to find Hope.
3. I remember there is no such sentence = =, only this sentence "YOU HAVE NOT OBSERVED. AND YET YOU HAVE SEEN. You are not observing, you are just watching. "Scandal in Bohemia", Talking about the 17th step.