In Diana Gabaldon's "Outlander," Brian Fraser imparts a crucial lesson to young Jamie. He emphasizes that one's thoughts and actions have consequences, particularly when mischief is involved. This advice serves as a warning that engaging in trouble can lead to punishment, illustrating the connection between one's decisions and the resulting outcomes.

This moment highlights the theme of accountability in the story. Brian's words reflect parental guidance, teaching Jamie to consider the implications of his actions and ultimately shaping his character. The quote serves as a reminder that while curiosity and adventure are important, they should be balanced with responsibility and mindfulness of the consequences that may follow.