Consider the sentence in image - Hence his emphatic insistence "on the importance of genius and the necessity of allowing it to unfold itself freely both in thought and practice," and his advocacy of such measures as a second vote for university graduates.
Does this sentence have a Verb? Why can't I see it? Can someone please explain to me the meaning of "Hence" here if it is used as a Verb? Or can anyone make a stripped-down version of this sentence for me to understand please?