Even Paul (the Apostle, not the Beatle) wrote about it:
Put off all these; anger, wrath, malice, blasphemy, filthy communication out of your mouth.
~Colossians 3:8, Bible, KJV
Here's a good book you can curl up with
http://www.amazon.com/exec/obidos/ASIN/ ... 10-6477502
Mark Twain on 'profanity'
"Under certain circumstances, profanity provides a relief denied even to prayer."~Mark Twain
"It chills my blood to hear the blest Supreme Rudely appealed to on each trifling theme."
~ William Cowper
"Nothing is greater or more fearful sacrilege than to prostitute the great name of God to the petulancy of an idle tongue."
~ Jeremy Taylor
"The foolish and wicked practice of profane cursing and swearing is a vice so mean and low that every person of sense and character detests and despises it."
~ George Washington