"Philosophy is a free inquiry into the limits of human knowledge and into the most general categories applicable to experience and reality."
– Stuart Hampshire
"What is your aim in philosophy? To show the fly the way out of the fly-bottle."
"Philosophy, like all other studies, aims primarily at knowledge.. The knowledge it aims at is the kind of knowledge which gives unity and system to the body of the sciences, and the kind which results from a critical examination of the grounds of our convictions, prejudices, and beliefs."
— Bertrand Russell
"Socrates: Now my art of midwifery is just like [the art of those who attend women in childbirth] in most respects. The difference is… that I watch over the labor of souls, not bodies. And the most important thing… is the ability to apply all possible tests to the offspring, to determine whether [it] is an error or a fertile truth."
"An idea is a putting truth in checkmate."
– Jose Ortega Y Gasset.
"[Philosophy] is an adventure in the clarification of thought, progressive and never final. But it is an adventure in which even partial success has importance."
– Alfred North Whitehead