Do one thing every day that scares you.

Mary Schmich (b. 1953) American newspaper columnist

“Advice, Like Youth, Probably Just Wasted on the Young,” Chicago Tribune (1997-07-01)
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Often attributed to Eleanor Roosevelt, but no reference found in her works or contemporaneous sources (though see this Eleanor quote). Also attributed to Kurt Vonnegut and to Baz Luhrmann (who used the words in a song but credited them to Schmich).Related predecessors can be found in other quotations (Emerson (1841), Jane Addams (1880), Mark Toby), linked back to this one below.  For more discussion about this quotation, see Do One Thing Every Day That Scares You – Quote Investigator®.