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Lewis Black 58
American stand-up comedian, author, playwright, social crit… 1948Related quotes

“Thinking is hard work, which is why you don't see many people doing it.”

Thomas Watson, Jr. (1957) cited in: Tom Watson, Jr. quoted - IBM http://www-03.ibm.com/ibm/history/exhibits/watsonjr/watsonjr_quoted.html at ibm.com, 2013.

Attributed to Butler in: American Dental Association (1959) The Journal of the American Dental Association. Vol 59. p. 289

Actually a remark by Nicholas Murray Butler.
Quoted by Watson in comments about "Think" and attributed to Nicholas Murray Butler - IBM Archives: Comments on "THINK" - Transcript https://www-03.ibm.com/ibm/history/multimedia/think_trans.html
Misattributed
Source: American Dental Association (1959) The Journal of the American Dental Association. Vol 59. p. 289.

Catching Up with Kate Mulgrew http://www.startrek.com/article/catching-up-with-kate-mulgrew-part-2 (January 19, 2011)

2007 CNN interview, reported in Zeke J. Miller, " When Donald Trump Praised Hillary Clinton http://time.com/3962799/donald-trump-hillary-clinton/", Time Magazine (July 17, 2015).
2000s

“Think how hard physics would be if particles could think.”