For 10 points, identify this principle which states that one's language affects one's thought and perception.
Loglan was designed in order to investigate this theory, although it failed to produce a definite result. Eric Lenneberg developed a framework to test this theory with experiments involving color terminology. Steven Pinker criticized this theory as the product of "long-time leanings toward mysticism." One of its namesakes illustrated it with an example involving so-called "empty gasoline drums," and argued for it by contending that Hopi speakers have a fundamentally different concept of time from English speakers. For 10 points, identify this principle which states that one's language affects one's thought and perception.
Loglan was designed in order to investigate this theory, although it failed to produce a definite result.
Sapir-Whorf hypothesis [accept linguistic relativity]