The heart has its reasons which reason knows not.

The heart has its order, the mind has its own, which uses principles and demonstrations. The heart has a different one. We do not prove that we ought to be loved by setting out in order the causes of love; that would be absurd.

The mind has its arrangement; it proceeds from principles to demonstrations. The heart has a different mode of proceeding.

Nothing is so insufferable to man as to be completely at rest, without passions, without business, without diversion, without study. He then feels his nothingness, his forlornness, his insufficiency, his dependence, his weakness, his emptiness. There will immediately arise from the depth of his heart weariness, gloom, sadness, fretfulness, vexation, despair.

Le coeur a ses raisons dont le cerveau ne sait nul. T: 'The heart has its reasons, of which the mind knows nothing.'

The heart has arguments with which the logic of mind is not aquainted.

It is the conduct of God, who disposes all things kindly, to put religion into the mind by reason, and into the heart by grace.

It is certain that those who have the living faith in their hearts see at once that all existence is none other than the work of the God whom they adore. But for those in whom this light is extinguished, [if we were to show them our proofs of the existence of God] nothing is more calculated to arouse their contempt. . . .

The heart has its reasons which reason knows nothing of... We know the truth not only by the reason, but by the heart." - Blaise Pascal