Men, unlike mockingbirds, have the capacity for systematic self-delusion. We echo each other with equal precision, equal eloquence, equal assurance.
A human being is a problem in search of a solution.
Animal language is a contagious expression of mood effecting communication between social partners.
What truly leads the evolutionary procession, in other words, is behavior.
Aggressiveness is the principal guarantor of survival.
If you watch lizards and lions copulating, then you will see that in 200 million years the male has not had a single new idea.