Some People Have Much More Pull Than

One Way To Explain The Complexity And Unpredictability Of Historical Systems, Despite Their Ultimate Determinacy, Is To Note That Long Chains Of Causation May Separate Final Effects From Ultimate Causes Lying Outside The Domain Of That Field Of Science.

Not Until The Beginning Of The 20th Century Did Europe's Urban Populations Finally Become Self-sustaining: Before Then, Constant Immigration Of Healthy Peasants From The Countryside Was Necessary To Make Up For The Constant Deaths Of City Dwellers From Crowd Diseases.

Throughout History, Adultery Has Had Few Rivals As A Cause Of Murder And Human Misery. The Reason We Tend To Resemble Our Mates Is That Many Of Us Are Looking For Someone Who Reminds Us Of Our Parent Or Sibling Of The Opposite Sex, Who In Turn Resembles Us.

In The Latter Case It Is Often Government That Organizes The Conquest, And Religion That Justifies It.

We Know From Our Recent History That English Did Not Come To Replace U.s. Indian Languages Merely Because English Sounded Musical To Indians' Ears. Instead, The Replacement Entailed English-speaking Immigrants' Killing Most Indians By War, Murder, And Introduced Diseases, And The Surviving Indians' Being Pressured Into Adopting English, The New Majority Language.