蒔かぬ種は生えない。

蒔かぬ種は生えない。

You must sow before you can reap.

蒔(ま)かぬ種(たね)は生(は)えない。

Makanu tane wa haenai.

蒔く (まく)

to sow; to plant; to seed; to sprinkle (gold or silver powder on lacquerware)

種 (たね)

seed; pip; kind; variety; quality; tone; material; matter; subject; theme; (news) copy; leaven (bread); cause; source; trick; secret; inside story

は (は)

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

生える (はえる)

to grow; to spring up; to sprout; to cut (teeth)

Readings: シ、ジ、う.える、まく

Meaning: sow (seeds)

Readings: シュ、たね、 -ぐさ

Meanings: species, kind, class, variety, seed

Readings: セイ、ショウ、い.きる、い.かす、い.ける、う.まれる、うま.れる、う.まれ、うまれ、う.む、お.う、は.える、は.やす、き、なま、なま-、な.る、な.す、む.す、 -う

Meanings: life, genuine, birth