I only partially agree with this. I do believe that if you are extremely selfish, you WILL end up with no one. Because no one wants to be around people like that. As for the first part, yes, perhaps if you’re so EXTREMELY GENEROUS that you give away ALL your possessions, you will literally have nothing. But that only pertains to material things. If you choose to be so generous to do as this says, out of the goodness and kindness of your heart, then I think you’ll eventually end up RICH! RICH with FRIENDS, people who LOVE you, GOOD feelings, LIFE LESSONS, WISDOM, true SATISFACTION, a LIGHT heart and no WORRIES!
I think a balance is necessary, but I also think it is clear which is the more REWARDING choice! :)