Many graduate mathematics programs require proficiency in a second language, with a preference for French, German, or Russian over Mandarin. While Mandarin may provide access to Asian research, its complexity and the necessity of tonal pronunciation can be challenging without immersion. Learning languages like French or Spanish is often more practical for those in the U.S., given their prevalence and ease of access to speakers. The discussion highlights that for academic purposes, focusing on reading and translation skills may suffice, rather than mastering writing and speaking. Ultimately, the choice of language should align with personal goals and the context in which one plans to use it.