“No matter how rich, talented or intelligent you are… how you treat animals tells me all I need to know about you.”
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Ralph Smart 339
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“Tell me how you measure me, and I will tell you how I will behave.”
Source: The Haystack Syndrome (1990), p. 26

Yeo Bee Yin (2018) cited in " Yeo: You don't need to know me, you need to know how https://www.thestar.com.my/news/nation/2018/07/12/yeo-you-dont-need-to-know-me-you-need-to-know-how/" on The Star Online, 12 July 2018
“If you don’t produce, you won’t thrive—no matter how skilled or talented you are.”
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“I can't tell you how much time is spent worrying about decisions that don't matter.”
A Conversation with Ward Cunningham (2003), Collective Ownership of Code and Text
Context: I can't tell you how much time is spent worrying about decisions that don't matter. To just be able to make a decision and see what happens is tremendously empowering, but that means you have to set up the situation such that when something does go wrong, you can fix it.

Tell Her About It.
Song lyrics, An Innocent Man (1983)