"If we take a cold, hard look at the human condition, we see an unpleasant picture. However, there are powerful biological drives against fully recognizing the awfulness of the human predicament that explain why so many people succeed in putting it out of their minds for much of the time. This is a mixed blessing. Ignorance is an existential analgesic, but those who do not sufficiently feel the weight of the human predicament are also vectors for its transmission to new generations."