I agree with Schwealdsondottir and AppleScruffs; this has a very sarcastic overtone. The parts that go "Another thing you should've known from the start" and "And another thing you have to know in this world" seem sort of frustrated and mocking; as though the message is "These ridiculously simple philosophies being offered up to solve all the complicated problems in your life - why hadn't you thought of them before?! Oh yeah, maybe because the idea of trying to fix the big problems in life by doing something this inane seems to undermine those thing seriousness and importance in your life. Maybe those big problems and the struggles to overcome them are what makes life interesting and you already inherently knew that it was vaguely demeaning to try to tackle them with dumb, cutesy little metaphors like this."
I agree with Schwealdsondottir and AppleScruffs; this has a very sarcastic overtone. The parts that go "Another thing you should've known from the start" and "And another thing you have to know in this world" seem sort of frustrated and mocking; as though the message is "These ridiculously simple philosophies being offered up to solve all the complicated problems in your life - why hadn't you thought of them before?! Oh yeah, maybe because the idea of trying to fix the big problems in life by doing something this inane seems to undermine those thing seriousness and importance in your life. Maybe those big problems and the struggles to overcome them are what makes life interesting and you already inherently knew that it was vaguely demeaning to try to tackle them with dumb, cutesy little metaphors like this."
That's just my interpretation though... 8^)