What a good thing Adam had — when he said a good thing, he knew nobody had said it before. – Mark Twain, 1867

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

I fancy mankind may come, in time, to write all aphoristically, except in narrative; grow weary of preparation, and connection, and illustration, and all those arts by which a big book is made. – Samuel Johnson, quoted in The Journal of a Tour to the Hebrides, with Samuel Joh

Many moons ago dictionaries of quotations may have been less needed than they are today. In those good/bad old days, people walked around with entire poems and all the Shakespearean soliloquies in their heads…. – Joseph Epstein, Foreword to Fred R. Shapiro’s Yale Book of Quotations, 200