Igros Moshe, Even HaEzer 2:1
“My outlook is based only on knowledge of Torah whose ways are truth, without any influence of secular studies.”
There is a tape available in Seforim stores called “The prohibition to learn in Colleges” (Yiddish), which contains addresses by Rav Moshe Feinstein ZT’L and Rav Aharon Kotler ZT’L condemning college. Rav Moshe Feinstein ZT’L also denounced college in a Teshuva, and in a famous speech delivered to his students, published under the title “The Counsel of the Wicked” (Vaad LeHaromas Keren HaTorah, New York, 1978). There he reiterates that everyone has an obligation to become great in Torah, we should not care so much about monetary wealth, and that learning Torah is what we should be pursuing, not secular stuff. He says in America you do not need college to make a Parnassa, and we should be willing to live on little, not a lot, for the sake of Torah, and that R. Nehuray’s statement in the Gemorah (“I will forgo all skills in the world and teach my son only Torah”) of abandoning all skills in favor of Torah applies all that more today that we live in a country where you can make a parnassa without college, with no miracles needed.