All great art and literature is propaganda.
Lack of money is the root of all evil.
All great truths begin as blasphemies.
Patriotism is your conviction that this country is superior to all other countries because you were born in it.
If you have an apple and I have an apple, and we exchange apples, we both still only have one apple. But if you have an idea and I have an idea, and we exchange ideas, we each now have two ideas.