Added New Quotes

I added new quotes to the following categories:

• Don't Give Up
• Duh!
• Education/Experience/Etc.
• Friendship, Love, and ...
• In the beginning, God ...
• Life ... An Owner's Manual
• Mental Health
• Ouch!
• Silence is Golden
• Smile!
• The Losing Game
• To Tell the Truth
• War and Peace
• Wish I'd Said That