The "no trifle" framing is the part that changes how the quote reads. Not that you should inflate small wins but that ranking them below larger ones is itself the mistake. A small win that compounds over time is worth more than a large win that's a one-off and doesn't repeat.
The city walk images alongside the Meditations quotes is a good pairing. There's something about movement that makes reflective writing land differently than sitting still with a book.
RE: Satisfied with success