“For though we love both the truth and our friends, piety requires us to honor the truth first.”

“We should behave to our friends as we would wish our friends behave to us”

“A friend is a second self, so that our consciousness of a friend's existence...makes us more fully conscious of our own existence.”

“With the truth, all given facts harmonize; but with what is false, the truth soon hits a wrong note.”

“The least deviation from truth will be multiplied later. ”

“The investigation of the truth is in one way hard, in another easy. An indication of this is found in the fact that no one is able to attain the truth adequately, while, on the other hand, no one fails entirely, but everyone says something true about the nature of all things, and while individually they contribute little or nothing to the truth, by the union of all a considerable amount is amassed.”

“Some men are just as sure of the truth of their opinions as are others of what they know.”