And taking upon me to write indifferently of whatever comes into my head, and therein making use of nothing but my own proper and natural means, if it befall me, as oft-times it does, accidentally to meet in any good author, the same heads and commonplaces upon which I have attempted to write (as I did but just now in Plutarch's "Discourse of the Force of Imagination"), to see myself so weak and so forlorn, so heavy and so flat, in comparison of those better writers, I at once pity or despise myself.

Yet do I please myself with this, that my opinions have often the honour and good fortune to jump with theirs, and that I go in the same path, though at a very great distance, and can say, "Ah, that is so." I am farther satisfied to find that I have a quality, which every one is not blessed withal, which is, to discern the vast difference between them and me; and notwithstanding all that, suffer my own inventions, low and feeble as they are, to run on in their career, without mending or plastering up the defects that this comparison has laid open to my own view.

And, in plain truth, a man had need of a good strong back to keep pace with these people.

The indiscreet scribblers of our times, who, amongst their laborious nothings, insert whole sections and pages out of ancient authors, with a design, by that means, to illustrate their own writings, do quite contrary; for this infinite dissimilitude of ornaments renders the complexion of their own compositions so sallow and deformed, that they lose much more than they get.
The philosophers, Chrysippus and Epicurus, were in this of two quite contrary humours: the first not only in his books mixed passages and sayings of other authors, but entire pieces, and, in one, the whole Medea of Euripides; which gave Apollodorus occasion to say, that should a man pick out of his writings all that was none of his, he would leave him nothing but blank paper: whereas the latter, quite on the contrary, in three hundred volumes that he left behind him, has not so much as one quotation .-- [Diogenes Laertius, Lives of Chyysippus, vii.

181, and Epicurus, x.