" The heart of metaphor is inference. Conceptual metaphor allows inferences in sensory-motor domains (e.g., domains of space and objects) to be used to draw inferences about other domains (e.g., domains of subjective judgment, with concepts like intimacy, emotions, justice, and so on). Because we reason in terms of metaphor, the metaphors we use determine a great deal about how we live our lives. "

― George Lakoff , Metaphors We Live By