Democracy is the art and science of running the circus from the monkey cage.
Henry Louis Mencken (1880-1956) 

Democracy is the theory that the common people know what they want and deserve to get it good and hard.
Henry Louis Mencken (1880-1956) 

Diplomacy is the art of saying "Nice Doggie!" till you can find a rock.
Wynn Catlin 

Disco is to music what Etch-A-Sketch is to art.
Anonymous 

Drama is life with the dull bits cut out.
Alfred Hitchcock 

Economists are people who work with numbers but don't have the personality to be accountants.
Anonymous 

Education: That which discloses to the wise and disguises from the foolish their lack of understanding.
Ambrose Bierce (1842-1914)  - The Devil's Dictionary, 1911

Egotist: a person more interested in himself than in me.
Ambrose Bierce (1842-1914)  - The Devil's Dictionary, 1911

Enzymes are things invented by biologists that explain things which otherwise require harder thinking.
Jerome Lettvin 

Evil is whatever distracts.
Franz Kafka