How do I Know if I Know Anything? ……. a Philosophical question

Blue paint.

Months that begin on a Sunday will always have a “Friday the 13th.”

Whenever you think that you are facing a contradiction, check your premises. You will find that one of them is wrong. Ayn Rand (1905-1982)

If a word in the dictionary were misspelled, how would we know? Stephen Wright

Another wonderful word – meaning is luminosity or “giving off light”