[Updated 3/7/2021: You can find the comic at https://www.gocomics.com/getfuzzy/2011/03/06.]
In response to Rob's sarcastic suggestion that Bucky is "a real think tank," Bucky Katt comments, "Thinking implies uncertainty. I'm a know tank."

Know any "know tanks"? Wish they could express even a smidgen of humility that they might not know it all?
Someone commented on the Get Fuzzy website: "Why is it that there are those who know very little and are so certain, whereas those who know so much are uncertain?"