Logic in barbara is the logic of mathematics and empirical science and non-living things. Socrates will die. L ogic in grass is the logic of schizophrenics, metaphor and living things.
Men are grass.
O f course, says Bateson, people are not grass. However, when thinking metaphorically, we can imagine many ways in which people are grass and the idea might even seem lovely to us. My temptation is quiet. Here at life's end Neither loose imagination, Nor the mill of the mind Consuming its rag and bone Can make the truth known. B ateson's point was that we must be careful not to get barbara logic mixed up with grass logic.