Sound as in true? Or sound as in more comfortably fits one's current set of beliefs?
Many of these quotes are getting at the unexamined assumption that happiness can be found anywhere but right here. The point of many of the quotes is introduce some curiosity and question the fundamental assumptions that run your life.
If you are steeped in the mindset of chasing happiness, of never finding it here, and you're simply looking to confirm that, then of course inverting the quotes is going to fit better with your world view. In that case, keep chasing it and chasing it until one day you wake up and realise it never seems to arrive. Then the quotes may hit differently.