Sheep.

The utility of information is admitted practically as well as theoretically; without a literate population a modern State is impossible. But the utility of intelligence is admitted only theoretically, not practically; it is not desired that ordinary people should think for themselves, because it is felt that people who think for themselves are awkward to manage and cause administrative difficulties. Only the guardians, in Plato’s language, are to think; the rest are to obey, or to follow leaders like a herd of sheep.

Bertrand Russell