Lisa Kleypas (1964) American writer
Source: Love in the Afternoon
According to The Quote Investigator http://quoteinvestigator.com/2014/04/17/butterfly/, "the earliest instance of this saying was crafted by the enigmatic “L” for “The Daily Crescent” newspaper in New Orleans [in June 1848]. ... The linkage to Henry David Thoreau is unsupported." <br class="br">Misattributed
Lisa Kleypas (1964) American writer
Source: Love in the Afternoon
Donald Ervin Knuth (1938) American computer scientist
Donald Knuth, quoted in: Arturo Gonzalez-Gutierrez (2007) Minimum-length Corridors: Complexity and Approximations. p. 99
Sadhguru (1957) Yogi, mystic, visionary and humanitarian
Economic Times http://articles.economictimes.indiatimes.com/2012-12-21/news/35953428_1_human-body-indian-business-isha-foundation, 21 December 2012 <br class="br">Sourced from newspapers and magazines
Michael Frayn book The Tin Men
The Tin Men (London: Collins, 1965) p. 59.