"Contrariwise," continued Tweedledee, "if it was so, it might be, and if it were so, it would be; but as it isn't, it ain't. That's logic!"
(Lewis Carroll, Alice in Wonderland)

Viewed from the summit of reason, all life looks like a malignant disease and the world like a madhouse.
(Johann Wolfgang von Goethe)

The heart has its reasons of which reason knows nothing.
(Blaise Pascal, Pens&eactue;es, trans. A.J. Krailsheimer)

The heart has its reasons of which reason knows nothing.
(Blaise Pascal, Pensées, trans. A.J. Krailsheimer)

We know the truth, not only by the reason, but also by the heart.
(Blaise Pascal, Thoughts, Chap. x. 1., Translated by O. W. Wight)

Man is a rational animal who always loses his temper when he is called upon to act in accordance with the dictates of reason.
(Oscar Wilde)