In the late 1980s and early 1990s, advances in cognitive psychology and cognitive linguistics renewed interest in the Sapir–Whorf hypothesis. One of those who adopted a more Whorfian approach was George Lakoff. He argued that language is often used metaphorically and that languages use different cultural metaphors that reveal something about how speakers of that language think. For example, English employs conceptual metaphors likening time with money, so that time can be saved and spent and invested, whereas other languages do not talk about time in that way. Other such metaphors are common to many languages because they are based on general human experience, for example, metaphors associating "up" with "good" and "bad" with "down". Lakoff also argued that metaphor plays an important part in political debates such as the "right to life" or the "right to choose"; or "illegal aliens" or "undocumented workers".