The study of human language has been the battleground over different theories of human nature.

人类语言的研究,是各种人性理论的重要领域

耶鲁公开课 - 心理学导论课程节选

How is learning different languages important to the field that you're studying?

学习不同的语言对你研究的领域有多大重要性？

学习外语的重要性 - SpeakingMax英语口语达人