MAVERICK

an independent individual who does not go along with a group or party

someone who exhibits great independence in thought and action
SYN - rebel

"he would never compromise his beliefs for any reason, which allowed him to proudly bear the label of maverick, but made him wholly unpractical and unproductive."

"As a philosopher he was a true maverick, as all the greats where."

"how could a girl resist this maverick who stood on his own, and stood strongly!"