# Zettels should capture an atomic concept

The core intention of practicing Zettelkasten is so that you can connect and build on top of other concepts, generating insights. To make this happen, naturally, every notes that you write should be oriented around a concept. Capturing notes by concept will also force you to elaborate what you have read (Write about what you read).

Capturing your notes by books, in contrast, is straightforward but will not encourage notes linkage and therefore will not generate new ideas (see also: Zettels should not have ephemeral tags).

The concept that you capture must be atomic, meaning it must not have multiple ideas in one note. Not only atomic notes are easier to be read in the future, but also most importantly, it will increase the link-ability of the note.

# References

Ahrens, How to Take Smart Notes (pp. 18-19).

He then would turn to the main slip-box and write his ideas, comments and thoughts on new pieces of paper, using only one for each idea and restricting himself to one side of the paper, to make it easier to read them later without having to take them out of the box. He kept them usually brief enough to make one idea fit on a single sheet, but would sometimes add another note to extend a thought.

Evergreen notes should be concept-oriented | Andy Matuschak Notes

It’s not just about accumulation. There’s also no pressure to synthesize your new ideas on the concept with your prior thoughts about it.