The Let Them Theory operates within several established philosophical traditions while offering contemporary applications of classical concepts. The work’s emphasis on accepting others’ autonomy while maintaining personal boundaries reflects elements of both Western and Eastern philosophical approaches to individual agency and interpersonal relationships.

The theory’s foundation aligns with Stoic philosophy, particularly in its emphasis on distinguishing between what can and cannot be controlled. Like the Stoic philosopher Epictetus, who argued that freedom comes from accepting what lies beyond one’s control, Robbins advocates for emotional detachment from others’ choices and reactions. This parallel extends to the Stoic concept of prohairesis—the capacity for rational choice and judgment that remains free regardless of external circumstances.

Buddhist philosophy’s concept of non-attachment also resonates throughout the work. While Buddhist tradition emphasizes liberation from attachment to reduce suffering, Robbins adapts this principle to contemporary relationships. The “Let Them” component of her theory echoes Buddhist teachings about accepting reality as it is rather than as one wishes it to be. However, Robbins diverges from traditional Buddhist thought by emphasizing personal empowerment rather than the dissolution of ego.

The theory engages with modern existentialist concepts, particularly Jean-Paul Sartre’s (Being and Nothingness) ideas about radical responsibility and authenticity.