Breakdown of In quanto sociologo, è una voce autorevole.
essere
to be
una
a / an (feminine)
la voce
the voice
in quanto
as, in the capacity of
Questions & Answers about In quanto sociologo, è una voce autorevole.
Why isn't there an article before sociologo?
Can I use come instead of in quanto in this sentence?
Yes, Come sociologo, è una voce autorevole is perfectly natural. Both in quanto and come can express "in the role of" and both drop the article before the profession. However, in quanto is slightly more formal and explicitly highlights that his authority comes directly from his capacity as a sociologist.
How do we know the implied subject is "he" when the pronoun is dropped?
The masculine noun sociologo is the giveaway. Even though the subject pronoun is omitted before è, the profession describes the subject. If the subject were female, the sentence would start with In quanto sociologa.
Why does the adjective autorevole end in -e if it describes the feminine noun voce?