A proverb meaning that time passes very quickly (literally, 'time flies like an arrow'); warns of the shortness of life or youth.
母はよく『光陰矢のごとし』と言って、勉強を急かした。
My mother often said 'time flies like an arrow' to urge me to study.
受験生にとって、光陰矢のごとしはよく使われる表現だ。
For exam students, the expression 'time flies like an arrow' is often used.
光陰矢のごとしという言葉を胸に、彼は留学の準備を始めた。
Keeping the phrase 'time flies like an arrow' in mind, he began preparing to study abroad.