expression
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.
人生一度きりだから、やりたいことをやろう。
You only live once, so let's do what we want to do.
人生一度きり、後悔しないように生きたい。
Life is only once; I want to live without regrets.
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.