you only live once; you only have one life
Proverbial expression encouraging seizing the moment or living without regret, similar to English YOLO but more reflective.
You only live once, so let's do what we want to do.
Life is only once; I want to live without regrets.
Standard kanji-kana mixed spelling.
Alternate spelling using 切り for きり.
A set phrase composed of 人生 (life), 一度 (once), and きり (only, just). The exact origin is uncertain, but it reflects a common sentiment in Japanese proverbs.