Nature, which alone is good, is wholly familiar and common. - Blaise Pascal

The greatest and most important thing in the world is founded on weakness. This is a remarkably sure foundation, for nothing is surer than that the people will be weak.

Just as we talk of poetic beauty, so we should also talk of mathematical beauty and medicinal beauty. But we do not talk like that for the very good reason that we know what the object of mathematics is, namely proof; and what the object of medicine is, namely cure; but we do not know what constitutes the attraction which is the object of poetry.

Comme on se gâte l'esprit, on se gâte aussi le sentiment.