Vain Philosophies: How Should Christians View Worldly Wisdom?
The biblical warning is against confusing "things heavenly" with "things earthly," not against "things earthly" in general.
"See to it that no one takes you captive through hollow and deceptive philosophy…" (Col. 2:8)
Elizabeth was a bright young Christian with a keen interest in learning. Having been recently converted, she was eager to serve the Lord and when she was led to the Scriptures by her new Christian friends, she was delighted to learn everything she could. But Elizabeth's zealous friends grew increasingly worried about her attentive and persistent study of "secular philosophy" — the wisdom of the world. Eventually, Elizabeth was faced with a fork in the road: ...