existential proposition

例句：

1. 1. The existential crisis of the human condition is a topic that has been explored extensively in philosophy.
   人类存在的根本危机是一个哲学上广泛探讨的主题。
2. 2.The existential question of whether to continue or give up is one that many people face in their lives.
   继续还是放弃，这是一个许多人在生活中面临的存在性问题。
3. 3.In his book, he explores the existential dilemmas faced by individuals in modern society.
   在他的书中，他探讨了现代社会中个人面临的存在性困境。