The man who boasts that he can manage very well in life without studying philosophy, forgets that to possess no philosophy merely means to possess bad philosophy. For it merely means that like an animal he holds an unexamined, unanalysed, and uncriticized view of life. The need of philosophical study is simply the need of understanding our existence.
-- Notebooks Category 20: What Is Philosophy? > Chapter 1: Toward Defining Philosophy > # 201