求翻译：在《实践论》的论述中，谈到了一个人的勇气与信心跟他对工作的内容和环境有没有规律性的了解直接相关。是什么意思？

In the exposition of the theory to practice, referring to a person of courage and confidence to work with him on content and directly related to the environment have any understanding of the law.