Who said “"Understanding being nothing else, but conception caused by Speech."”?

“Folks never understand the folks they hate.”

“If one does not understand a person, one tends to regard him as a fool.”

“Sir, I have found you an argument; but I am not obliged to find you an understanding.”

“You never really understand a person until you consider things from his point of view.”

“We can chart our future clearly and wisely only when we know the path which has led to the present.”

“Leisure is the mother of Philosophy.”

“No mans error becomes his own Law; nor obliges him to persist in it.”

“Sudden Glory, is the passion which maketh those Grimaces called LAUGHTER.”

“Science is the knowledge of consequences, and dependence of one fact upon another.”

“The secret thoughts of a man run over all things, holy, profane, clean, obscene, grave, and light, without shame or blame.”

“Prudence is but experience, which equal time, equally bestows on all men, in those things they equally apply themselves unto.”