“Conquering any difficulty always gives one a secret joy, for it means pushing back a boundary line and adding to one's liberty.”

“Feebleness of will brings about weakness of head, and the abyss, in spite of its horror, comes to fascinate us, as though it were a place of refuge. Terrible danger! For this abyss is within us; this gulf, open like the vast jaws of an infernal serpent bent on devouring us, is in the depth of our own being, and our liberty floats over this void, which is always seeking to swallow it up.”

“At the bottom of the modern man there is always a great thirst for self-forgetfulness, self-distraction; he has a secret horror of all which makes him feel his own littleness; the eternal, the infinite, perfection, therefore scare and terrify him. He wishes to approve himself, to admire and congratulate himself; and therefore he turns away from all those problems and abysses which might recall to him his own nothingness.”

“You desire to know the art of living, my friend? It is contained in one phrase: make use of suffering.”

“Any landscape is a condition of the spirit.”

“What is it which has always come between real life and me? What glass screen has, as it were, interposed itself between me and the enjoyment, the possession, the contact of things, leaving me only the role of the looker-on?”

“Society lives by faith, and develops by science.”