Complete the contents of the card
カードの内容を完結させる
将来いつ読み返しても理解できるようにカードを書く
他のカードとリンクさせやすい
Zettelkasten rules
Each card must be self-contained, meaning that the meaning must be understood from the content written on a single card. This means that each card can be moved, separated, or connected without affecting the other cards.