Benjamin Lee Whorf
(1897 - 1941) He and Edward Sapir claimed that the structure of the language you speak is a key determinant in how you think about the world. This is known as the Sapir-Whorf Hypothesis.
1. Click here for further analysis of this concept and its relationship to the English language's surprisingly large emotional vocabulary.
2. He is also the primary instigator of what has come to be called the Great Eskimo Vocabulary Hoax.