You can’t ever know if the first statement is true without keeping score.
In other words: to get the things you want, convince yourself and others you are being selfless then ask them for stuff.
Anyone who is interested in helping people out truly selflessly can secretly send me money on a regular basis, and I’ll make sure it goes to people who need it and take credit for it. You can be helping and not keeping score just like the book suggested.
Wait… to get the book or a course or coaching I need to pay first? Oh I see… it’s “give me exactly this much stuff first, so I can tell you how you should never do that.”