Courtesy of Mr. Whittle’s latest offering:

But the only thing I genuinely fear is the cyclical nature of civilization. I fear the consequences of abandoning personal responsibility. I fear the self-hatred and nihilism that grows among the pampered, the narcissistic and the uninformed. These are things to be feared greatly. They have brought down entire civilizations and led to dark ages that have cost this species very dearly.

I would add “relativism” to that list in the third sentence; I suppose it could be argued that relativism and nihilism are siblings…