1f056552__Unequally_Yoked_to_the_World____in__the_world__not_yoked_
[Example] Self Improvement [“of” the world (yoked)] Exercise, education and achievement for personal glory, adoration, increased status and to fulfill the desires of the flesh you could be unequally yoked to a humanistic system of self improvement or to a person who teaches self improvement with no understanding of God [“in” the world (not yoked)] 
Exercise, education and achievement that enhances your ability to live and demonstrate the Christian life
Brent Riggs - Designer, Author, Business Man - Question: What Does It Mean to Be Unequally Yoked to the World?
“in” the world (not yoked)