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"There are three things extremely hard: steel, a diamond, and to know one's ___.": Poor Richard's Almanack
"There are three things extremely hard: steel, a diamond, and to know one's ___.": Poor Richard's Almanack NYT Crossword Clue
Across clue · from the March 24, 2026 puzzle
Stuck on “"There are three things extremely hard: steel, a diamond, and to know one's ___.": Poor Richard's Almanack” from the New York Times Crossword? Here is the verified answer:
Answer
SELF