Hi Vitaly, yes it is always a good idea to get the whole quote not just a part of it. '.I shall always feel respect for every one who has written a book, let it be what it may, for I had no idea of the trouble which trying to write common English could cost one—And alas there yet remains the worst part of all correcting the press.' Charles Darwin wrote this in a letter to W. D. Fox, 7 July 1837, referring to his Journal of Researches. In F. Burkhardt and S. Smith (eds), The Correspondence of Charles Darwin 1837-1843 In this quote Darwin was saying that it was not any easy task for him to write a book in simple/common English which everyone could understand and that the editing process was a laborious one as well.