Do Christians have more common sense than the world's greatest philosophers?
Yes. Paul says believers have wisdom God imparted to every saved person, giving them more common horse sense than the world's greatest educated philosopher. The world lacks this wisdom. Christians are unique in that regard and should use it, especially in settling matters within the local church.
Les explains that Paul is driving home the believer’s unique position: the world outside has none of the wisdom God has imparted to every believer. Because God gives wisdom to the saved person by virtue of salvation, the believer has more common horse sense than the greatest educated philosopher. Les connects this to Paul’s argument that if saints will one day judge the world and rule and reign with Christ during the millennium, they should get practiced up now by settling mundane disputes within the local church. He says believers have a wisdom the world does not have and should use it.