Eating chocolate releases the same hormones that our body makes when we are in love: phenylethylamine (PEA)
Eating chocolate increases our endorphins, the body's natural pain killers.
Raw cacao contains N-acylethanolamines that are believed to temporarily increase levels of anandamide in the brain and enzyme inhibitors that slow its breakdown.  This means we feel more relaxed when we eat chocolate.
Chocolate causes certain endoctrine glands to secrete hormones that effect your feelings and behaviors by making you happy.  Chocolate counteracts depression, in turn, reducing the stress of depression.  Your stress-free life helps you maintain a youthful disposition, both physical and mental.  So, eat lots of chocolate!
- Elaine Sherman, Book of Divine Indulgences 

Chocolate is a divine, celestial drink, the sweat of the stars, the vital seed, divine nectar, the drink of the Gods, panacea and Universal Medicine.
- Antonio Lavedon, Surgeon in the Spanish army 1796

Chocolate is a vegetable.  Chocolate is derived from cocoa beans.  Beans = Vegetable
Sugar is derived from either sugar cane or sugar beets.   Both are plants, which places them in the vegetable category.  Thus, chocolate is a vegetable.  To go one step further, chocolate candy bars also contain milk, which is dairy.  So candy bars are a health food.
Chocolate is a perfect food, as wholesome as it is delicious, a beneficent restorer of exhausted power.  It is the best friend of those engaged in literary pursuits.
- Baron Justus Von Liebig (1803-1873), German Chemist.

What's in the cocoa bean?
54% Fat (cocoa butter)                               34% Cleic Acid
                                                                          33% Stearic Acid
                                                                          26% Palmitic Acid
                                                                            6% Other

31% Carbohydrates                                       1% sugar
                                                                          16% Fiber

11% Protein                                                     Arginine, Glutamine, Leveine

3% Polyphenols                                             Flavanols, Proanthocyanins

1% Minerals                                                    Fe, Mg, K, Cu

Chocolate was invented at least 3,100 years ago by the Aztecs in Central America and not as the Sweet treat people now crave, but as a celebratory beer-like beverage and status symbol.
Researchers identified residue of a chemical compound that comes exclusively from the cacao plant - the source of chocolate - in pottery vellums dating from about 1100 B.C. in Puerto Escondido, Honduras, .
This pushed back by at least 500 years the earliest documented use of cacao, an important luxury commodity in Mesoamerica before European invaders arrived.
Cacao seeds were used to make ceremonial beverages consumed by elites of the Aztecs and other civilizations, while also being used as a form of currency, perhaps to celebrate weddings and birth.
The chocolate enjoyed by later Mesoamerica civilizations like the Maya and Aztecs was made from ground cacao seeds with added seasoning, producing spicy, frothy drink.
The Spanish conquistador who shattered the Aztec empire in the 16th century were smitten with a chocolate beverage made from cacao seeds served in the palace of the emperor. 
The Spanish brought cacao back to Europe in the 16th century and many chocolate innovations have occurred in the ensuing century.
Theobromine is a mild stimulant, similar in effect to caffeine, found in chocolate.

Save the Earth, it's the only planet with Chocolate.

When no one understands you, Chocolate is there.

When life give you lemons, Throw them back and ask for chocolate.

Nobody knows the truffles I've seen... -Geroge Lang

Sometimes a girl's gotta have some Chocolate. - Carrie Underwood