存在

存在，係一個哲學概念。

本原
 形而上學
 存在主義
 存在主義神學
 本體論

拎
 The Concept of Existence: History and Definitions from Leading Philosophers
 "A Treatise on Book Titles" is a work by Sayf al-Din al-Amidi, in Arabic, about "original" and "mental existence". It dates from 1805.

哲學