Poverty is hereditary just like power, stupidity, and haemorrhoids.

History is hereditary only in this way: we, all of us, inherit everything, and then we choose what to cherish, what to disavow, and what do do next, which is why it's worth trying to know where things come from.

Human beings are ultimately nothing but carriers-passageways- for genes. They ride us into the ground like racehorses from generation to generation. Genes don't think about what constitutes good or evil. They don't care whether we are happy or unhappy. We're just means to an end for them. The only thing they think about is what is most efficient for them.

The whelp of a wolf must prove a wolf at last, notwithstanding he may be brought up by a man.

With him for a sire and her for a dam, What should I be but just what I am?

Deep in the cavern of the infant's breast The father's nature lurks, and lives anew.

Heredity sets limits; environment decides the exact portion within these limits.