A Christian must be courteous in words and deeds. His words and deeds should breathe with the grace of the Holy Spirit. The graceful speech of a Christian is characterized by delicateness and politeness. Born of love, it produces peace and joy. Boorishness, on the other hand, gives birth to hatred, enmity, affliction, competitiveness, disorder and wars.

— St. Nektarios of AeginaThe Path to Happiness, 7