信念的英文：
faith
belief
conviction

参考例句：

Belief in a messiah.
对弥赛亚的信念

Strong will,belief, determination
坚强的意志、信念、决心

An unconquerable faith.
不可战胜的信念

The failure on the college entrance examination extinguish his faith in future.
高考的失败使他对未来的信念破灭。

Faith has need of the whole truth. ——Pierre Teilhard de Chardin
信念需要全部的真理。——查尔丁

Individual convictions count for little when habits of corruption or the drive for the quick buck overwhelm them.
当腐败惯例或者获取短期利益的欲望战胜个人信念的时候,个人信念没有什么作用。

Any attempt to give a rational proof of the mysteries of religion really detracts from faith.
任何想合理论证宗教奥秘的做法，会使信念降低的。

Nothing can shake our assurance that our team will win the game.
什么也无法动摇我队会获胜的信念。

Material elements needed the impetus of intangibles of faith and dedication.
物质因素还必须由无形的信念和献身精神来推动。

Those war plans rested on a belief in the ineluctable superiority of the offense over the defense(Jack Beatty)
那些战争计划有一个信念为基础，即进攻必然比防守有利(杰克·贝蒂)

faith是什么意思：
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。

belief是什么意思：
n. 相信；信任，信赖；信念；宗教信仰，教义

They belief in the hereafter.
他们相信死后灵魂的存在。

The belief in Divine Predestination includes belief in four things
信仰真主得救命定论者包括信仰四件事

He lived his belief.
他身体力行自己的信仰。

conviction是什么意思：
n. 判罪；定罪；确信，信念；说服力

She was convicted of murder.
她被判犯有谋杀罪。

He was convicted of his errors.
他认识到自己所犯的过失。

The judge convicted him of robbery.
法官判他犯有抢劫罪。