expression
spare no effort while you are young; heavy work in youth is quiet rest in old age
Proverb encouraging young people to work hard and endure hardships, as the experience will benefit them later in life.
「若い時の苦労は買うてもせよ」と言うから、今のうちに色々なことに挑戦しよう。
They say 'spare no effort while you are young,' so let's try various things now while we can.
A traditional Japanese proverb. The exact origin is uncertain, but it reflects a common cultural value of perseverance and diligence in youth.