The only thing that one really knows about human nature is that it changes. Change is the one quality we can predicate of it. The systems that fail are those that rely on the permanency of human nature, and not on its growth and development. The error of Louis XIV was that he thought human nature would always be the same. The result of his error was the French Revolution. It was an admirable result.
Congregated here are quotes found through an extensive research process outlined as follows. Throughout any regular day, while browsing the internet for whatever reason, one may stumble upon a good quote and say "wow, that's profound." Those I find worthwhile or funny are posted here.