Maurice Merleau-Ponty

The world is... the natural setting of, and field for, all my thoughts and all my explicit perceptions. Truth does not inhabit only the inner man, or more accurately, there is no inner man, man is in the world, and only in the world does he know himself.

It is the mission of the twentieth century to elucidate the irrational.

It is the essence of certainty to be established only with reservations.