Bullshit

Philosopher Harry Frankfurt in his wonderful essay, On Bullshit...
"What is the difference between bullshit and lies? Bullshitting often entails lying, of course, but Frankfurt shows that they are not the same. When a person is merely lying, he must still keep the truth in view. He must at least give the appearance of intellectual honesty. The bullshitter knows no such constraints. He takes no notice of the truth, or of the reasonable expectations others might have about it. The bullshitter just keeps talking."