I doubt whether Cromwell or Milton could have rivaled [William Lloyd] Garrison in this field of quotation; and the power of quotation is as dreadful a weapon as any which the human intellect can forge. – John Jay Chapman

The hunter for aphorisms on human nature has to fish in muddy water, and he is even condemned to find much of his own mind. – Francis H. Bradley, Aphorisms, 1930

I often quote myself. It adds spice to my conversation. – George Bernard Shaw

Every book is a quotation; and every house is a quotation out of all forests and mines and stone quarries; and every man is a quotation from all his ancestors. – Ralph Waldo Emerson, “Plato; Or, The Philosopher”