Panta rhei (English spelling) pantarhei

…He was from the royal family of Ephesus. He is considered a philosopher who believed that fire is the source of all things and that all things are constantly changing, but his famous statement that “everything flows” (panta rhei) was actually the words of Simplicius, who inherited the critical interpretations of Plato and Aristotle, and was not directly said by him. He did indeed talk about fire and flow, but that was only one aspect of his philosophy, and his most important idea was about “logos.” …

*Some of the terminology explanations that mention "panta rhei" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…エフェソスの王家の出身。火を万物のもとのものとし，その万物は変化してやまぬと説いた哲学者とされてきたが，いわゆる〈すべては流れる(パンタ･レイpanta rhei)〉という有名な言葉もプラトンやアリストテレスの批判的解釈を継承したシンプリキオスの言葉であって，彼自身の直接の発言ではない。火や流動についてもたしかに述べてはいるが，それは彼の哲学の一面であって，もっとも重要なのは〈ロゴス〉についての考えである。…

※「panta rhei」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報