If the Easter Islanders couldn't solve their milder local problems in the past, how can the modern world hope to solve its big global problems? Peopl… - Jared Diamond

[..] the values to which people cling most stubbornly under inappropriate conditions are those values that were previously the source of their greatest triumphs.

The central principle of Fritz Bauer's career was that Germans should hold judgement upon themselves. That meant prosecuting ordinary Germans, not just the leaders whom the Allies had prosecuted. [...] The Nazi defendants being prosecuted by Bauer all tended to offer the same set of excuses [...]. Bauer's response, which he formulated again and again at the trials and in public, was as follows. Those Germans whom he was prosecuting were committing crimes against humanity. The laws of the Nazi state were illegitimate. One cannot defend one's actions by saying that one was obeying those laws. There is no law that can justify a crime against humanity. Everybody must have his own sense of right and wrong and must obey it, independently of what a state government says. Anyone who takes part in what Bauer called a murder machine [...] thereby becomes guilty of a crime.

People often ask, "What is the single most important environmental/population problem facing the world today?" A flip answer would be, "The single most important problem is our misguided focus on identifying the single most important problem!"