既知のことは未知のことと区別しなくてはならない。

Sentence Analyzer

English Translation

The known must be separated from the unknown.

Furigana

既知(きち)のことは未知(みち)のことと区別(くべつ)しなくてはならない。

Romanji

Kichi no koto wa michi no koto to kubetsushinakute wanaranai.

Words

既知 (きち)

already known; well-known

の (の)

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

事 (こと、こん)

thing; matter; incident; occurrence; event; something serious; trouble; crisis; circumstances; situation; state of affairs; work; business; affair; after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to; nominalizing suffix; pretending to ...; playing make-believe ...; alias; aka; nickname; alternative name; also known as

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

未知 (みち)

not yet known; unknown; strange

と (と)

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

区別 (くべつ)

distinction; differentiation; classification

ば (ば)

if ... then; when; and; why don't you...?; the more (one does something); because; since