Elon Musk: The fundamental weakness of Western civilization is empathy.

Hannah Arendt: The death of human empathy is one of the earliest and most telling signs of a culture about to fall into barbarism.

In order to understand, Arendt wrote The Banality of Evil, about what led to the holocaust.  She learned that when one looks at numbers rather than consequences in the way that Eichmann did when he was proud to view how many people could be murdered in a day, we see the consequences. 

Eichmann’s behavior is like that of Musk who is looking at numbers, and is not concerned with consequences.  

The Dalai Lama: Love and compassion are necessities, not luxuries.  Without them, humanity cannot survive.