老人達が若者達よりいつも賢いとは限らない。

The old are not always wiser than the young.

老人達(ろうじんたち)が若者達(わかものたち)よりいつも賢(かしこ)いとは限(かぎ)らない。

Rōjintachi ga wakamonotachi yori itsumo kashikoi to wa kagiranai.

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

より (より)

than; from; out of; since; at; on; except; but; other than; more

何時も (いつも)

always; usually; every time; never

賢い (かしこい)

wise; clever; smart

と (と)

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

は (は)

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

限る (かぎる)

to restrict; to limit; to confine; to be restricted to; to be limited to; to be confined to

Readings: ロウ、お.いる、ふ.ける

Meanings: old man, old age, grow old

Readings: ジン、ニン、ひと、 -り、 -と

Meaning: person

Readings: タツ、ダ、 -たち

Meanings: accomplished, reach, arrive, attain

Readings: ジャク、ニャク、ニャ、わか.い、わか-、も.しくわ、も.し、も.しくは、ごと.し

Meanings: young, if, perhaps, possibly, low number, immature

Readings: シャ、もの

Meanings: someone, person

Readings: ケン、かしこ.い

Meanings: intelligent, wise, wisdom, cleverness

Readings: ゲン、かぎ.る、かぎ.り、 -かぎ.り

Meanings: limit, restrict, to best of ability