CultureThought for the DayTuesday 23 November 1999 19:02 ESTBookmarkCommentsGo to commentsBookmark popoverRemoved from bookmarksClose popover"Two things are identical if one can be substitutedfor the other without affecting the truth."Gottfried Wilhelm Leibniz,German philosopherJoin our commenting forumJoin thought-provoking conversations, follow other Independent readers and see their repliesComments
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