Prick or prickly, take your pick. But a great sci-fi author (one of my favorites) and some of his quotes are more relevant than ever:
"The two most common elements in the universe are hydrogen and stupidity."
"Everybody has opinions: I have them, you have them. And we are all told from the moment we open our eyes, that everyone is entitled to his or her opinion. Well, that’s horsepuckey, of course. We are not entitled to our opinions; we are entitled to our informed opinions. Without research, without background, without understanding, it’s nothing. It’s just bibble-babble. It’s like a fart in a wind tunnel, folks."