[E]dged tools are dangerous things to handle, and not infrequently do much hurt. – Agnes Reppllier, “Wit and Humor,” 1892 [A bit of context here: “Wit is the salt

Men have become the tools of their tools. – Henry David Thoreau, Walden

The best carpenters make the fewest chips. – English proverb, c.1500s

The carpenter dresses his plank, the tongue of his foreplane whistles its wild ascending lisp… – Walt Whitman, “Song of Myself,” Leaves of Grass