A favorite band of mine wrote a song with the words “…seeking the favor of others brings the murder of self”. Going your own way will lead to personal freedom, and going with the flow could lead to personal enslavement. Making your own decisions is the centerpiece of this concept. Still, there is a difference between entertaining the thoughts and opinions of someone else and believing them as your own.
Jefferson said “In matters of style, swim with the current. In matters of principle, stand like a rock”. In this he was saying that while your style will change over the years (Hair styles are different today than they were in the 80s, 90s…), fundamental beliefs should be solid.