[Kiboneu]

Right before the credits for the relevant ending, the screen reads:

"If God did not exist, it would be necessary to invent him." -- Voltaire

This game also introduced me to Last and First Men by Olaf Stapledon, from an optional dialogue with a bartender in a hidden area in the hong kong game map.

[steinuil]

...I completely forgot that I was also introduced to Last and First Men by that same dialogue in Deus Ex. It's a great book!

[romanichm12]

What Are We Becoming, and What Price Are We Paying?