„Philosophy aims at the logical clarification of thoughts. Philosophy is not a body of doctrine but an activity.“

— Ludwig Wittgenstein
„The aim of philosophy is to erect a wall at the point where language stops anyway.“
— Ludwig Wittgenstein
„Philosophy will not be able to effect an immediate transformation of the present condition of the world. This is not only true of philosophy, but of all merely human thought and endeavor.“
— Martin Heidegger