“Time spent with cats is never wasted.”
Frequently attributed to Freud, but there is no evidence Freud ever said it http://www.freud.org.uk/about/faq/.
Misattributed
Help us to complete the source, original and additional information
Sigmund Freud 147
Austrian neurologist known as the founding father of psycho… 1856–1939Related quotes

“Time spent arguing with the faithful is, oddly enough, almost never wasted.”
Source: 2000s, 2001, Letters to a Young Contrarian (2001)

“All time is wasted that is not spent in seeking God.”
This adage is attributed to the ancient sage Sukdeva, as quoted in Promise of Immortality: The True Teaching of the Bible and the Bhagavad Gita (2001) by J. Donald Walters. p. 242
Disputed

“A life spent defensively, worried, is a life wasted.”
Source: Every Second Counts (2003), p. 21
Context: A life spent defensively, worried, is a life wasted.
You know when I need to die? When I'm done living. When I can't walk, can't eat, can't see, when I'm a crotchety old bastard, mad at the world. Then I can die.

"Good And Bad Procrastination", December 2005