Crossword puzzle clue "they may be sharp or dull but always unwanted"

They may be sharp or dull, but always unwanted

Dull, dull, dull

Really dull but sharp fencing museum subject in McLean, TX

Dull-colored, or just plain dull

Y'know, we always hear how great this guy's violins were, but maybe now it's all psychological that we think they sound so awesome

“... but they always quiet themselves when I tell them to ___”

"I'm returning these sheets-I tuck them in, but they're always coming out"

Who said "Action may not always bring happiness, but there is no happiness without action."