Few of those who fill the world with books, have any pretensions to the hope either of pleasing or instructing. They have often no other task than to lay two books before them, out of which they compile a third, without any new material of their own, and with very little application of judgment to those which former authors have supplied.
Samuel JohnsonWhen I first collected these authorities, I was desirous that every quotation should be useful to some other end than the illustration of a word; I therefore extracted from philosophers principles of science; from historians remarkable facts; from chymists complete processes; from divines striking exhortations; and from poets beautiful descriptions.
Samuel Johnson