one for all, all for one

(literally) plan your day during the morning, plan your year during New Year's / early planning is the key to success

kill two birds with one stone, do one task and finish two or more goals (literally, “one stone, two birds”)

(obsolete) being surprised twice / (obsolete) more specifically, describes the appearance of a woman who has a beautiful figure from behind but has an ugly face

(grammar) a verbal conjugation class in which the verb stem ends in -i and consists of four alternating bases: -i, -iru, -ire, and -iyo/-iro

Rome wasn't built in a day

(idiomatic, proverb) be quick on the uptake, understand the whole situation from just a few clues

Alternative form of 十二単

a journey of a thousand miles begins with a single step

an anthology of one hundred poems by one hundred poets, one poet for each poem