As someone who studied mathematics as an undergrad and then intellectual history (with an emphasis on philosophy) postgrad, I second this. I would add too that

As someone who studied mathematics as an undergrad and then intellectual history (with an emphasis on philosophy) postgrad, I second this. I would add too that learning how to write effective philosophy papers is an excellent way to improve your writing, and argumentation, and analytical ability more generally. (I often share the Jim Pryor's guidelines [1] with students.) [1] http://www.jimpryor.net/teaching/guidelines/writing.html http://www.jimpryor.net/teaching/guidelines/writing.html