> Deep Work https://www.amazon.com/Deep-Work-Focused-Success-Distracted/...
> Can't Hurt Me https://www.amazon.com/Cant-Hurt-Me-Master-Clean/dp/15445078...
> Talking to Humans https://www.amazon.com/Talking-Humans-Success-understanding-...
> Rich Dad Poor Dad https://www.amazon.com/Rich-Dad-Poor-Teach-Middle/dp/1612680...
> 4 Hour Workweek https://www.amazon.com/4-Hour-Workweek-Escape-Live-Anywhere/...
> Steve Jobs https://www.amazon.com/Steve-Jobs-Walter-Isaacson/dp/1451648...
> The Design of everyday things https://www.amazon.com/Design-Everyday-Things-Revised-Expand...
> Siddhartha: A Novel https://www.amazon.com/Siddhartha-Novel-Hermann-Hesse/dp/055...
> The Four Agreements https://www.amazon.com/Four-Agreements-Practical-Personal-Fr...
> Rework https://www.amazon.com/Rework-Jason-Fried/dp/0307463745?dchi...
The difference between Paul and Robert is that Paul is up-front about this while Robert is cagey and deceptive and makes his money by stringing people along thinking that The Answer can be found by buying one more of his books. But I think a lot of the hate here is driven by disappointment that Paul is honest, and that his answer is that there is no Answer. It can be frustrating to hear that (which is also something that Paul explicitly points out).
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[1] https://www.amazon.com/Rich-Dad-Poor-Teach-Middle/dp/1612680...
[2] http://paulgraham.com/lesson.html
[3] http://paulgraham.com/before.html