I love this. Read it first not thinking of the title, then reread it with the title. Without it's deep, with it's clever.
Ha ha. But, a wee bit of self-love does a world of good. I know half a dozen people who I wish I could teach to love themselves.
Yes, but too much tends to cause the world harm. If all you need is you, then you don't need to worry about how your actions affect others.