他的个人道德准则禁止他撒谎，即使是为了个人利益。

His personal ___ethics forbid him from lying, even for personal gain.

恪守严格的环境伦理是这家公司核心理念的一部分。

Adhering to a strict environmental ___ethics is central to the company's philosophy.

她的职业道德不允许她对安全违规行为视而不见。

Her professional ___ethics would not allow her to ignore the safety violations.