We cannot quote from his own works, in his own words, because, although he wrote very much, only a summary of his writings has come to us uninjured; but his doctrines have been so fully investigated and treated on, both by his opponents and his disciples, that there is no difficulty or doubt as to the principles inculcated in the school of Epicurus....

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "We cannot quote from his own works, in his own words, because, although he wrote very much, only a summary of his writings has come to us uninjured; but his doctrines have been so fully investigated and treated on, both by his opponents and his disciples, that there is no difficulty or doubt as to the principles inculcated in the school of Epicurus...." in the context of "Laertius, quoted in Ancient and Modern Celebrated Freethinkers (Half-Hours with the Freethinkers) by Charles Bradlaugh, A. Collins, and J. Watts (1877)" to mean that wisdom is timeless.