How many of us have been first attracted to reason, first learned to think, to draw conclusions, to extract a moral from the follies of life, by some dazzling aphorism from Rochefoucauld or La Bruyere. – Edward Lytton Bulwer

A book of quotations… can never be complete. – Robert M. Hamilton

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

Do not shun this maxim because it is common-place. On the contrary, take the closest heed of what observant men, who would probably like to show originality, are yet constrained to repeat. Therein lies the marrow of the wisdom of the world. – Arthur Helps, “Chapter IV,” Companions of My Solitude, 1851