I've stumbled upon this question a few times in book forums, and honestly, it's a bit tricky. 'Ang Diwa Ng Mga Salawikain' isn't as widely available as mainstream novels, but I did find some excerpts floating around on academic sites and Filipino cultural blogs. The full text might be harder to track down—I remember digging through digital archives like Project Gutenberg Philippines and even checking old university libraries' online catalogs.
If you're keen on salawikain (Filipino proverbs) in general, there are free compilations out there that capture similar wisdom. Websites like Filipiniana.net sometimes feature scanned pages of older books, though the legality can be murky. My advice? Try reaching out to local cultural groups or libraries; they might point you to legit sources or even physical copies you can borrow.