noun
philosophy of life; guiding principle in life
Refers to a personal creed or set of principles that guide one's daily conduct and decisions.
彼の生活信条は「一日一善」だ。
His philosophy of life is 'one good deed a day.'
健康第一が私の生活信条です。
Health first is my guiding principle in life.
Compound of 生活 (life, living) and 信条 (creed, principle). The exact historical derivation is uncertain, but the word is a straightforward Sino-Japanese compound.