I personally am not conscious of my accent.

Biology is the science. Evolution is the concept that makes biology unique.

[T]he values to which people cling most stubbornly under inappropriate conditions are those values that were previously the source of their greatest triumphs.

The southward advance of native African farmers with Central African crops halted in Natal, beyond which Central African crops couldn't grow - with enormous consequences for the recent history of South Africa.

Recent discoveries about apes suggest, however, that a gorilla or common chimp stands at least as good a chance being murdered as the average human.

In the latter case it is often government that organizes the conquest, and religion that justifies it.

One person making a wrong decision affects the whole country.