suggested that the universe was beginning to look more like a great thought than a great machine. Humanists seized on the expression, but it was hardly news. We knew, looking around, that a thought branches and leafs, a tree comes to a conclusion. But the question of who is thinking the thought is more fruitful than the question of who made the machine, for a machinist can of course wipe his hands and leave, and his simple machine still hums; but if the thinker’s attention strays for a minute, his simplest thought ceases altogether.
