Once I put in question the certitude about being that operates in my experience of the world

Now a further step: Once I put in question the certitude about being
that operates in my experience of the world, this certitude can no longer serve as the basis for forming judgments. Consequently what is demanded of us — or of me the meditating and philosophizing ego — is a universal epoché regarding the being of the world, including all the individual realities that one’s experience (even one’s consistently harmonious experience) submits as actual. What then remains?

Edmund Husserl, PHENOMENOLOGY AND ANTHROPOLOGY
June, 1931