倫 (Kanji for principles)

Onyomi

RIN	My principles require me to wear a RING when I get married.

The person's principles forbid him from going to a bookstore (FYI he is a jock)

不倫(ふりん)

affair ★★☆☆☆
不 (un) + 倫 (principles) = 不倫 (affair)

an affair - cheating

倫理(りんり)

principles ★★☆☆☆
倫 (principles) + 理 (reason) = 倫理 (principles)

one's personal ethics or principles

	Meaning	Hint	Radical
倫	principles	PERSON	人
論	make a case for	TALK	言

A PERSON has principles, but you TALK when you have discussion.