单凭信仰的英文：
on faith
n. 信任，相信，宗教信仰，宗教，诚意，善意
As faithful as a dog.
像狗一般的忠诚。
"in faith (=by my faith, upon my faith)"
实在!说实话!说真的!的确!
Faith, which does not doubt is a dead faith.
没有怀疑的信念是无生命的信念。
Love asks faith, and faith asks firmness.
爱情要求忠诚，忠诚要求坚定。
Faith is stronger than reason.
宗教信仰比推理劝说更具威力.