单凭信仰的英文怎么说

单凭信仰的英文：
on faith

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.