no rose without a thorn

figuratively

(figuratively) To enjoy a pleasant subject or thing, one must take trouble and hardship

Japanese Meaning

素晴らしい物事には必ず伴う困難や苦労がある / 楽しいものにも必ず苦労や辛い側面が存在する

She accepted the promotion, telling herself 'no rose without a thorn,' and braced herself for the extra responsibilities.

彼女は昇進を受け入れ、良いことには必ず苦労が伴うと自分に言い聞かせて、増える責任に備えた。

Sense（1）

(figuratively) To enjoy a pleasant subject or thing, one must take trouble and hardship