This question seems to be incomplete. However, there´s enough information to find the right answer.
Answer: It´s an opinion.
Step-by-step explanation:
In The Roving Mind (1983), Issac Asimov quotes "When I Heard the Learn’d Astronomer," by Walt Whitman to refute the idea that science drains the beauty from gazing at the stars. Asimov claims that Whitman's point of view makes him only be able to detect a "limited beauty", as his disregard of the astronomer's lecture makes him unaware of the beauty behind science. However, his claim his only an opinion, not a fact, because Asimov can only conjecture Whitman´s experience.