scientists tended to adopt a perspective on their professional efforts that was more philosophical than instrumental. In the Nicomachean Ethics, which would have been familiar to any serious thinker from the time of Copernicus onward, Aristotle identified deep contemplation as the most human and worthy of all activities. The general lifestyle of the scientist, by this logic, had a worthiness of its own, independent of any specific accomplishments in the moment. Little value was to be gained in rushing, as the work itself provided reward.