How did 19th century philosophers/scientists answer the question “How can we know anything at all?”The first task in the development of every discipline is the act of defining exactly what that discipline is. For psychology, this definition began in the 18 th century with a consideration of “How can we know anything at all?” In your own words but correctly using all of the important vocabulary (from both the text and learning modules), explain in detail how 19 th century philosophers/scientists sought to answer this question.