Sharp Tongue

The sharp tongue, not necessarily bad, It's meant to cut through to the truth, my friend, They say its sharp but would you rather have it dull, And stagnant to mascarade what's really going on?, Would you rather have it hidden under layers never to be found, While watching the foundations shake and the walls tumble to the ground, By definition can you appreciate the word "sharp"?, It not only means to cut through, it also means "smart".