Believing you will succeed will also make you happier.

相信自己会成功还会让你更加幸福。

youdao

Particularly insidious, counterfeit medicines dupe sick people into believing they are taking something which will make them well, when it may instead make them sicker or even kill them.

特别阴险的是，假冒药物欺骗患者，使他们相信他们正在服用的东西将使他们康复，而实际上却可使他们病得更重甚至造成他们死亡。

youdao

The reason for this paradox is the placebo effect: believing a treatment to be effective is sometimes enough to make it so.

这种矛盾产生于安慰剂效应：相信治疗是有效的想法有时足以令情况如此。

youdao

It is analogous to believing that the way to make domestic crime disappear in America is for law-abiding citizens somehow to change their behavior, perhaps by offering concessions to the criminals.

CENTERFORSECURITYPOLICY: Union of Orthodox Jewish Congregations of America (1)

But Alan Leighton, head of Prospect, felt Ferguson's apology had been "half-hearted" and is disappointed by the ruling, believing the authorities missed an opportunity to make a statement to back up the FA's Respect campaign.

BBC: Ferguson hit with FA fine and ban