Luís De Camões said this quote

Love is a fire that burns unseen,a wound that aches yet isn’t felt,an always discontent contentment,a pain that rages without hurting,a longing for nothing but to long,a loneliness in the midst of people,a never feeling pleased when pleased,a passion that gains when lost in thought.It’s being enslaved of your own free will;it’s counting your defeat a victory;it’s staying loyal to your killer.But if it’s so self-contradictory,how can Love, when Love chooses,bring human hearts into sympathy?