"If I did not have this opportunity, how much would I be willing
to sacrifice in order to obtain it?"  Similarly, we can ask, "If
I wasn't already involved in this project, how hard would I work
to get on it?"'

From "Essentialism" by Greg McKeown: 'This book guides you through
the process of saying "no" to the "trivial many" so you can focus
more on the "essential few".'

A very thorough book summary is here: https://paulminors.com/essentialism-by-greg-mckeown-book-summary-pdf/
(Don't need to download the .pdf, the content is all on the webpage).

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