The author is using a metaphor to express the idea that in life, one should be selective about what they care about or invest their time and energy in. The phrase 'you have a limited amount of f*cks to give' means that you have a finite amount of time and energy, and you should choose wisely where to spend it. If you care about everything and everyone without thinking or choosing, you will exhaust yourself and end up being taken advantage of.
This book is all about finding what is truly important in life and discarding everything else. The l...
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