Avi, on that point I agree with HaLeiVi. The Chasam Sofer in Parshas Beshalach states clearly that certain secular knowledge is useful for learning certain Torah topics, such as cow anatomy being useful for shechitah, and arithmetic for Eruvin and Sukkah. But that before we embark on obtaining secular knowledge – and of course that means only to the extent that it is useful for our Torah studies – we must first fill ourselves with Torah-only knowledge. After we are strong in Torah, only then can we move to acquire the useful secular knowledge that we need for our Torah studies.
He quotes the Rambam, who he describes as “the father of philosophy” in our religion, in Hilchos Yesodei HaTorah, stating that a person may not learn philosophy until after he has “filled his stomach” with Shas and Poskim, which are the things, and only the things, that bring us Olam Habah. Then he quotes the Rashba, saying that there is a cherem against learning any secular studies if you are under age 25! The he quotes the Gemora in Brachos “Keep your children away from science” (higayon, as some meforshim translate it), noting that the Gemora is directing its prohibition at “your children”, but not at the adults, for adults, who are already advanced in Torah knowledge, need some secular knowledge, such as cow biology. (I’m emphasizing that so that we do not make the error of thinking that the secular knowledge that we need is a college education). But it is dangerous for us to pursue it until we are armed and ready with a Torah foundation. This is because someone with a Torah perspective looks at the value and culture of of secular studies differently than does someone ignorant of Torah. And we do want to get the proper perspective.