I've had this chapter for a while, but now that I can feel the subsequent chapter approaching, I might as well release this one.
It's about the laws of nature: 弱肉強食 It was the first four kanji idiom I ever learned, and somehow I still find it funny with its literal meaning: weak meat is a strong meal. :) (In all likelihood, it's "weak - meat, strong - eat", but my first version somehow sounds funnier -- whatever makes it easier to remember.)
Get the chapter:
