In "When Women Were Birds: Fifty-four Variations on Voice," Terry Tempest Williams emphasizes the importance of vigilance against deceptive appearances. She warns readers to be cautious of charming individuals who may hide malicious intent beneath a benign exterior, comparing them to wolves disguised as sheep. This serves as a reminder that evil can be disguised, and quick judgments might lead to being misled.

"Beware of the charismatic wolf in sheep's clothing. There is evil in the world. You can be tricked." underscores the theme that not everyone who appears trustworthy truly is, urging a careful discernment of character beyond surface appearances. The message highlights the need for awareness and skepticism in a world where deception often lurks behind charm and beauty.