n. 原理,原则;主义,道义;本质,本义;根源,源泉
principle 原则,准则,规范
来自principal,主要的,最重要的,-le,工具格后缀。引申词义原则,准则,规范等。
It is often easier to fight for principles than to live up to them. [Adlai Stevenson, speech, New York City, Aug. 27, 1952]Scientific sense of "general law of nature" is recorded from 1802. The English -l- apparently is by analogy of participle, etc.