A quote
Therefore, you need not call upon me for extracts and quotations; such thoughts as one may extract here and there in the works of other philosophers run through the whole body of our writings. Hence we have no “show-window goods,” nor do we deceive the purchaser in such a way that, if he enters our shop, he will find nothing except that which is displayed in the window. We allow the purchasers themselves to get their samples from anywhere they please.
Seneca·Letter 33 — On the Futility of Learning Maxims (§3)·trans. Gummere