Here is my sketch, with appropriate quotes for each social policy.
Monarchy: +2 food in your capital (Ancient, opposes Republic)
Military Caste: Each city with a garrison reduces unhappiness by -1
When they divided the Man, into how many parts did they apportion him? What do they call his mouth, his two arms and thighs and feet? His mouth became the Brahmin; his arms were made into the Warrior, his thighs the People, and from his feet the Servants were born. Rigveda, Mandala 10, hymn 90
Dynasty: +33% bonus to building wonders
Fiefs: Buying tiles 50% cheaper
Legalism: Reduces unhappiness due to the population in the capital by 33%
"If a man put out the eye of another man, his eye shall be put out." Hammurabi's Code
Royal Court: 33% faster growth of capital
"He who exercises government by means of his virtue may be compared to the north polar star, which keeps its place when all the stars are rotating about it." - Confucius, The Analects, Chapter 8
Republic: Training of Settlers is increased by 50% (Classical, opposes Monarchy)
"All animals are equal, but some animals are more equal than others." - George Orwell, The Animal Farm
Emancipation: +25% production of workers - "If slavery is not wrong, nothing is wrong." - Abraham Lincoln
Property law: New cities start with half full granary
Federalism: -50% in unhappiness from the number of Cities
Civil Society: Specialists consume half the amount of Food they would usually do.
Citizen Army: +33% Combat bonus inside your own territory
"All free men remember that in the final choice a soldier's pack is not so heavy a burden as a prisoner's chains." Dwight D. Eisenhower, inaugural address.
Monarchy is for early civilizations. Anyone with ambitions to grow should shift to Republic.
Honour: 25% bonus to attacking barbarians, notification if a barbarian camp is founded in your territory (Ancient)
"To die with honour, when one can no longer live with honour." Giacomo Puccini, Madama Butterfly
Discipline: +15% combat for units that stand next to another unit
Professional Army: Upgrading units costs 50% less gold.
Warrior Code: Free Great General (appears outside your Capital)
Military Tradition: Units gain double experience from combat, requires Warrior Code
"From the Halls of Montezuma to the shores of Tripoli; We fight our country's battles in the air, on land, and sea; First to fight for right and freedom and to keep our honor clean; We are proud to claim the title of United States Marine." - US Marine Corps hymn
Nationalism: +50% attack bonus in friendly territory, requires all other Honour policies
"We do not want a single foot of foreign territory; but of our territory we shall not surrender a single inch to anyone." Joseph Stalin, Party congress, 1930.
One of few that does not conflict with others. A necessity in a hostile world.
Diplomacy: Makes City State Influence degrade 25% slower (Classical)
Aesthetics: Minimum Influence level with all City-States is 20
Pluralism: +2 Science from every Trading Post
What used to be the Patronage tree, will probably be something completely different.
Theocracy: +2 Happiness from every Temple (Classical, opposes Rationalism)
Mission: +50% more Influence gained from Gold gifts to City-States
Mandate of Heaven: 50% of excess Happiness added each turn to the amount of Culture that may be spent on Policies.
Theocracy: 20% unhappiness from population in non-captured cities
Reformation: Immediately starts a 6 turn Golden Age
"Reason, that pretty whore, comes in and thinks she's wise, and what she says, what she thinks, is from the Holy Spirit, who can help us, then? Not judges, not doctors, no king or emperor, because [reason] is the Devil's greatest whore." - Martin Luther
Natalism: 25% faster population growth
"God blessed them and said to them, "Be fruitful and increase in number; fill the earth and subdue it." - Genesis, chapter 1
Rationalism: Immediately enter a 5-turn Golden Age (Renaissance, opposes Piety)
Exploration: +1 Movement and +1 Sight for Naval combat units
"When there are such lands there should be profitable things without number." Christopher Columbus' journal, November 1492
Paradigm Shift: Gain 2 free Technologies
Sovereignty: +15% Science while the empire is Happy
Feminism: +100% Great People production
...I know nothing of man's rights, or woman's rights, human rights are all that I recognise. Sarah Grimké, Letters on the Equality of the Sexes and the Condition of Woman.
Scientific Community: Allied City-States provide a Science bonus equal to 33% of what they provide for themselves
Piety is more about population and happiness, and could be useful when at war, though it gives no special warfare bonuses. The naval exploration bonus gives Rationalism an exciting edge.
Capitalism: Boosts gold output of your capital by +25% (Renaissance, opposes Socialism)
Rags to Riches: +50% Great People
"The man who dies leaving behind him millions of available wealth, which was his to administer during his life, will pass away “unwept, unhonoured and insung” no matter to what uses he leaves the dross which he cannot take with him." Andrew Carnegie: A Recording of the Gospel of Wealth
Contracting: Purchasing items in cities requires 25% less Gold
Free Trade: Quantity of Resources gifted by City-States increased by 100%, Happiness from gifted Luxuries increased by 50%.
No nation was ever ruined by trade. Benjamin Franklin
Competition: -33% Gold maintenance cost of Buildings
Boom: Happiness required for Golden Age decreased by 33%
Socialism: Increases production rate of all buildings by 25% (Industrial, opposes Capitalism)
Workers of the world unite! Communist Manifesto
Social Engineering: -33% of Policy Culture costs
This and no other is the root from which a tyrant springs; when he first appears he is a protector. Plato, The Republic
Civil Defense: +33% City Combat Strength
Public Health: +2 Happiness from Hospital
Public Works: Maintenance paid on Roads and Railroads reduced by 33%
Rationing: Quantity of Strategic Resources produced increases by 100%
Socialism is more fit for a hostile world, where strategic resources must be secured, and cities must be defended. Capitalism is very dependent on foreign trade.
Freedom: Specialist Population in the cities produce 50% less unhappiness (Renaissance, opposes Autocracy)
Revolution: 2 Free Social Policies
The revolution is not an apple that falls when it is ripe. You have to make it drop. Che Guevara
Free Speech: +2 Science from every Specialist
"I disapprove of what you say, but I will defend to the death your right to say it." Evelyn Beatrice Hall, The Letters of Voltaire
Separation of Powers: +1 happiness for each city connected to the capital
"All power tends to corrupt and absolute power corrupts absolutely." - Lord Acton
Pop Culture: Culture doubled in all Cities with a World Wonder
"I am my own experiment. I am my own work of art." - attributed to Madonna
Separatism: Other players’ City-State Influence Points decrease 33% faster
Sanctuary: Allied City States sometimes gift you Great People
Give me your tired, your poor, Your huddled masses yearning to breathe free, The wretched refuse of your teeming shore. Send these, the homeless, tempest-tost to me, I lift my lamp beside the golden door! - The New Colossus, Emma Lazarus
Autocracy: 33% reduction in Army Maintenance cost (Industrial, opposes Freedom)
Propaganda: +2 Happiness from Museum
In war, truth is the first casualty. - Aeschylus
Militarism: Gold cost of purchasing units reduced by 33%
The whole of the warring nations are engaged, not only soldiers, but the entire population, men, women and children. The fronts are everywhere to be seen. The trenches are dug in the towns and streets. Every village is fortified. Every road is barred. The front line runs through the factories. The workmen are soldiers with different weapons but the same courage. Winston Churchill, radio speech
Secret Police: -50% Unhappiness in Occupied Cities
Populism: Wounded military units inflict +25% more damage
Total War: for 20 turns all units get a 33% attack bonus
"In the burning and devastated cities, we daily experienced the direct impact of war. It spurred us to do our utmost... the bombing and the hardships that resulted from them did not weaken the morale of the populace." Albert Speer: Inside the Third Reich: Memoirs
Autocracy takes care of Happiness problems even better. It is slightly stronger since it just excludes one other social policy.
Omitted policies
Merchant Navy: +3 Production in all coastal Cities. Replaced by a new building, called Commercial Dock
Protectionism: +1 Happiness from each Luxury Resource, might be replaced by building