A true quotation cannot be divorced from the character who uttered or scribbled it; it should say as much about the person quoted as about the particular subject referred to, and for this reason an anthology of quotations should be a kind of portrait gallery. – Robert Andrews, The Columbia Dictionary of Quotations, “Introduction”

I am now to offer some thoughts upon that sameness or familiarity which we frequently find between passages in different authors without quotation. This may be one of three things either what is called Plagiarism, or Imitation, or Coincidence. – James Boswell, “The Hypochondriack,” No.XXII, 1779

The wise men of old have sent most of their morality down the stream of time in the light skiff of apothegm or epigram; and the proverbs of nations, which embody the commonsense of nations, have the brisk concussion of the most sparkling wit. – Edwin P. Whipple, lecture delivered before the Boston Mercantile Library Associa

But in the dying world I come from quotation is a national vice. No one would think of making an after-dinner speech without the help of poetry. It used to be the classics, now it’s lyric verse. – Evelyn Waugh, The Loved One: An Anglo-American Tragedy, 1948