Poetry, from describing external events objectively, is becoming subjectified into a poetry of personal conscious expression.

Every god is a jealous god after the breakdown of the bicameral mind.

It is by metaphor that language grows.

There is no such thing as a complete consciousness.

Consciousness is a much smaller part of our mental life than we are conscious of, because we cannot be conscious of what we are not conscious of.

We invent mind-space inside our own heads as well as the heads of others ... we assume these 'spaces' without question. They are a part of what it is to be conscious. Moreover, things that in the physical-behavioural world that do not have a spatial quality are made to have such in consciousness. Otherwise we cannot be conscious of them.

Alfred Russel Wallace, the codiscoverer of the theory of natural selection. Following their twin announcements of the theory in 1858, both Darwin and Wallace struggled like Laocoöns with the serpentine problem of human evolution and its encoiling difficulty of consciousness. But where Darwin clouded the problem with his own naivete, seeing only continuity in evolution, Wallace could not do so.