“Think like a man of action, act like a man of thought.”

“Europe is overpopulated, the world will soon be in the same condition, and if the self-reproduction of man is not rationalized... we shall have war.”

“There are manifold tones of mental life, or, in other words, our psychic life may be lived at different heights, now nearer to action, now further removed from it, according to the degree of our attention to life.”

“Might not certain vices have the same relation to character that the rigidity of a fixed idea as to intellect? Whether as a moral kink or a crooked twist given to the will, vice has often the appearance of a curvature for the soul. Doubtless there are vices into which the soul plunges deeply with all its pregnant potency, which it rejuvenates and drags along with it into a moving circle of reincarnations. Those are tragic vices. But the vice capable of making us comic is, on the contrary, that which is brought from without, like a ready-made frame into which we are to step. It lends us its own rigidity instead of borrowing from us our flexibility. We do not render it more complicated; on the contrary, it simplifies us. Here, as we shall see later in the concluding section of this study, lies the essential difference between comedy and drama. A drama, even when portraying passions or vices that bear a name, so completely incorporates them that the person is forgotten, their general characteristics effaced, and we no longer think of them at all, but rather of the person in whom they are assimilated; hence, the title of a drama can seldom be anything else than a proper noun. On the other hand, many comedies have a common noun as their title: L'Avare, Le Joueur etc.”

“The universe is a machine for the making of Gods.”

“The pure present is an ungraspable advance of the past devouring the future. In truth, all sensation is already memory.”

“A situation is always comic if it participates simultaneously in two series of events which are absolutely independent of each other, and if it can be interpreted in two quite different meanings.”