I can, therefore I am.

There is something else which has the power to awaken us to the truth. It is the works of writers of genius. They give us, in the guise of fiction, something equivalent to the actual density of the real, that density which life offers us every day but which we are unable to grasp because we are amusing ourselves with lies.

Compassion directed to oneself is humility.

There is one, and only one, thing in modern society more hideous than crime namely, repressive justice.

prayer consists of attention. It is the orientation of all the attention of which the soul is capable towards God. The quality of the attention counts for much in the quality of the prayer. Warmth of heart cannot make up for it.

Mathematics alone make us feel the limits of our intelligence. For we can always suppose in the case of an experiment that it is inexplicable because we don't happen to have all the data. In mathematics we have all the data, brought together in the full light of demonstration, and yet we don't understand. We always come back to the contemplation of our human wretchedness. What force is in relation to our will, the impenetrable opacity of mathematics is in relation to our intelligence.

Christians ought to suspect that affliction is the very essence of creation. To be a created thing is not necessarily to be afflicted, but it is necessarily to be exposed to affliction. ... Affliction is the surest sign that God wishes to be loved by us; it is the most precious evidence of His tenderness.