Final causes or intentions are the torment of modern philosophy, which neglects nothing to get rid of them. From this, among other things, comes its great axiom: nature creates only individuals. Indeed, since all classification supposes order, this philosophy has denied classes to deny order. In order to establish this marvellous reasoning, it fixes its suspicious eyes on the differences between beings to dispense itself from turning them to their similarities. It does not want to recognize that nuances between classes and individuals constitute another order, and that diversity in resemblance supposes intention more visibly than mere resemblance.

In all that architecture has of the great and eternally beautiful, it is completely a production of the religious spirit. From the ruins of Tentyra to St Peter's in Rome, all the monuments speak; the genius of architecture is really only at ease in temples. It is there that above caprice, fashion, pettiness, licence, and finally all the gnawing cares of talent, it works without discomfort for glory and immortality.

The Christian woman is therefore a supernatural model like the angel. […] At the sight of these figures, however beautiful one can imagine them, no profane thought would dare arise in the heart of a man of taste. One owes them a certain intellectual admiration as pure as their models. Even in their clothing there is something that is not terrestrial. One must see there elegance without elaboration, poverty without ugliness, and, if the subject demands it, pomp without magnificence. They are beautiful like temples.

Religious beauty is superior to ideal beauty, since it is the ideal of the ideal.

I remember that in a widely distributed French newspaper they asked the famous author of the Génie du Christianisme, if a nymph was not a bit more beautiful than a nun. In supposing them represented by the same talent or by equal talents (a condition without which the question would make no sense), there is no doubt that the nun would be more beautiful. The error best suited to extinguishing the true sentiment of beauty is that of confusing that which pleases with that which is beautiful, or in other words, that which pleases the senses with that which pleases the intelligence.

All the science in the world began in temples, and the first astronomers especially were priests. I do not say that it necessary to begin again with the antique initiation, and to change the presidents of our academies into hierophants, but I say that all things begin again as they began, that they all carry an original principle that modifies itself according to the different character of nations and the progressive advance of the human mind, but which however always shows itself in one way or another. Priests have preserved everything, brooded over everything, and taught us everything.

The greatest of errors therefore would be to believe what the modern sect, which has only worked to obscure all truths, never ceases to advance, which is that what cannot be defined is not known, while on the contrary what is of the essence of what is perfectly known cannot be defined; for the more a thing is known, the more it brings us to intuition, which excludes all equation.

Man, in wearing himself out his whole life long by saying: What is that! and what is that called! and what does that mean! is a big spectacle to himself if he wants to open his eyes. All his natural powers tending towards the truth, he never ceases looking for true names; he senses a language prior to that of Babel, and even of Eden.

By means of [the microscope and the telescope] man touched, one might say, the two infinities. With the aid of glass, he could contemplate at his leisure the mite and the ring of Saturn. […] Master of glass through fire, and master of light through glass, he had lenses and mirrors of all kinds, prisms, containers, beakers, tubes, and finally barometers and thermometers. However all this originally began with the astronomical lens, which honours glass; and physics is born in some manner from astronomy, as it was written that, even in a material and gross sense, all science must descend from heaven.

There is perhaps nothing more interesting than to listen to a superior man talk of what he does not know. He advances slowly, and scarcely puts his foot down without knowing if the ground is solid; he looks for plausible analogies; he tries to attach his ideas to higher and incontestable principles; he always has the tone of looking, never that of teaching; and it often happens that, even if he is mistaken, he leaves a great enough idea of his mental honesty.