Mind out of matter : the mainspring of ideas
Gathering thoughts : thinking before agriculture
Settled minds : 'civilized' thinking
The great sages : the first named thinkers
Thinking faiths : ideas in a religious age
Return to the future : thinking through plague and cold
Global enlightenments : joined-up thinking in a joined-up world
The climacteric of progress : nineteenth-century certainties
The revenge of chaos : unstitching certainty
The age of uncertainty : twentieth-century hesitancies.
