it needs thorn to remove thorn

i am sorry, i dont mind getting scolded by you, my man,  a thorn is to be removed by thorn itself though it hurts, so my writings are sharp like sword/knife which can remove the bullet  blocked deep inside body. A soldier uses knife, doctior uses knfe, both use same, but its called by diffferent names. A writer/journalist uses his pen to wake up the lazy minds and remove the dirt or evil in their minds. 

Hope you understand the difference, my love and my soul mate.