The opinions which follow have for me various degrees of probability or certainty, but all go accompanied in my mind by a question mark. If I express them in the indicative mood it is only because of the poverty of language; my needs would require that that the conjugation should contain a supplementary tense. In the domain of holy things I affirm nothing categorically. But such of my opinions as are in conformity with the teaching of the Church also go accompanied in my mind by the same question mark. I look upon a certain suspension of judgement with regard to all thoughts whatever they may be, without any exception, as constituting the virtue of humility in the domain of intelligence.
— Simone Weil, Letter to a Priest (trans. A.F. Wills)