The quote critiques the tendency of people to seek explanations for events that may not require them, leading to unnecessary assumptions. Hitchens suggests that rather than imitating primitive ways of thinking to confront these flawed beliefs, we should simply eliminate those assumptions entirely. He specifically mentions examples like Noah's flood and the Holocaust to illustrate how misguided reasoning can complicate our understanding of historical events. This reflects a broader mindset where clarity and rationality are prioritized over unfounded speculation. By advocating for a direct approach to complex ideas, Hitchens encourages us to think critically and seek truth without the burden of unnecessary beliefs. Ultimately, the takeaway is that true freedom in thought comes from questioning assumptions and embracing clarity in our understanding of history and human experience.