The Times Are Changing
Humanity's view of mankind and the universe around them has seldom remained constant for more than a generation or two. New technology reveals new aspects of the physical universe, and new ideas reveal the same in the human mind. One example of such is the difference between the views of humankind and the universe from the late 17th century as compared to those of the late 19th century. Both were great times of change in Europe, yet the ideas that came about were completely different, reflecting an advance in both the physical and humanitarian sciences.
In the late 17th century, the big names in science and philosophy were Newton and Locke, respectively. Locke wrote that human nature was generally good, that government was for the good of the people, that humans had certain "natural rights" that should not be controlled by governments, and that true knowledge was that which could be experienced. Locke also wrote that personality and beliefs were influenced by the environment in which he or she was raised in. The universe, on the other hand, was sketched by Newton, who brought the ideas of Galileo and Kepler together into the concept of gravitational attraction for all bodies, whether they be stars, planets, or people. Both Newton and Locke had ideas that were extremely influential, and that contradicted the pre-existing models of science and humanity. For their time and for almost 200 years, their ideas were sound and influential to next generations.