People without devotion to duty or without scientific knowledge cannot do this work well.

不是忠心耿耿的人， 不懂科学知识的人，是搞不起来的。

youdao

If you are compassion without devotion, then there is danger that you might become very proud.

若是你的慈悲心不具备虔敬心，那你就有变得骄傲的危险。

youdao

And less complicated, for sure; a dog’s devotion is without detectable irony, a lap cat’s purring without artifice (if not disapproval).

而且毫无疑问，这种关系更单纯。 一条狗的忠诚中不会掺杂着一丝嘲讽;趴在腿上的猫发出的咕噜声里也听不出半点做作（如果不反对）。

youdao

Sons and daughters, fathers and mothers, husbands and wives, they were all patriots -- and with a devotion to duty that goes without equal, these proud Americans gave of themselves until they had nothing more to give.

WHITEHOUSE: The White House