History is a cycle, not a straight line.
What I mean by this quote is that history repeats itself. We think that we learn from our mistakes. The mantra for Nazi Germany is NEVER AGAIN. We thought that a genocide like that would happen again but then in 1994 the genocide in Rwanda occurred. Many nations did not get involved even though they knew what was going on. Many people think that history operates in a straight line where things happen and we learn from our mistakes in the past but I strongly disagree. We become ignorant and self-centred nations that are unwilling to help others.