WE ARE SALT AND LIGHT OF THE WORLD
Jesus said to his disciples:  'You are the salt of the earth.  But if salt becomes tasteless,  what can make it salty again?  It is good for nothing, and  can only be thrown out and  trampled underfoot by men.   'You are the light of the world.  A city built on a hill-top  cannot be hidden.   No one lights a lamp to put it  under a tub; they put it on the  lamp-stand where it shines for  everyone in the house.   In the same way your light  must shine in the sight of men,  so that, seeing your good works,  they may give praise to  your Father in heaven.' Mass Readings