conviction

a strong opinion or belief 坚定的看法（或信念）
strong political/moral convictions
坚定不移的政治／道德信念
She was motivated by deep religious conviction.
她的行动是出于虔诚的宗教信仰。
🔊🔊
a conviction that all would be well in the end
最终一切都会好起来的坚定信念