“There are neither graves nor death in Nature; there are various forms of existence, some of which enable us to be chemists, others only chemical substances.”

11 Nov 1888.
Private Journal - A collage of notes and images, sketches kept 1888-1895 & 1907 to 1940

Lecture II, "Circumscription of the Topic"
1900s, The Varieties of Religious Experience (1902)
Context: There must be something solemn, serious, and tender about any attitude which we denominate religious. If glad, it must not grin or snicker; if sad, it must not scream or curse. It is precisely as being solemn experiences that I wish to interest you in religious experiences. … The divine shall mean for us only such a primal reality as the individual feels impelled to respond to solemnly and gravely, and neither by a curse nor a jest.

Ménippe est l'oiseau paré de divers plumages qui ne sont pas à lui. Il ne parle pas, il ne sent pas; il répète des sentiments et des discours, se sert même si naturellement de l'esprit des autres qu'il y est le premier trompé, et qu'il croit souvent dire son goût ou expliquer sa pensée, lorsqu'il n'est que l'écho de quelqu'un qu'il vient de quitter.
Aphorism 40
Les Caractères (1688), Du mérite personnel

Introductory Epistle
On the Infinite Universe and Worlds (1584)

A Sketch of a Personalistic Universe (1936)
Context: There is neither spirit nor matter in the world; the stuff of the universe is spirit-matter. No other substance but this could produce the human molecule. I know very well that this idea of spirit-matter is regarded as a hybrid monster, a verbal exorcism of a duality which remains unresolved in its terms. But I remain convinced that the objections made to it arise from the mere fact that few people can make up their minds to abandon an old point of view and take the risk of a new idea. … Biologists or philosophers cannot conceive a biosphere or noosphere because they are unwilling to abandon a certain narrow conception of individuality. Nevertheless, the step must be taken. For in fact, pure spirituality is as unconceivable as pure materiality. Just as, in a sense, there is no geometrical point, but as many structurally different points as there are methods of deriving them from different figures, so every spirit derives its reality and nature from a particular type of universal synthesis.

Source: The Integration of the Personality (1939), p. 72

The Ethics of Belief (1877), The Weight Of Authority
Context: What shall we say of that authority, more venerable and august than any individual witness, the time-honoured tradition of the human race? An atmosphere of beliefs and conceptions has been formed by the labours and struggles of our forefathers, which enables us to breathe amid the various and complex circumstances of our life. It is around and about us and within us; we cannot think except in the forms and processes of thought which it supplies. Is it possible to doubt and to test it? and if possible, is it right?
We shall find reason to answer that it is not only possible and right, but our bounden duty; that the main purpose of the tradition itself is to supply us with the means of asking questions, of testing and inquiring into things; that if we misuse it, and take it as a collection of cut-and-dried statements to be accepted without further inquiry, we are not only injuring ourselves here, but, by refusing to do our part towards the building up of the fabric which shall be inherited by our children, we are tending to cut off ourselves and our race from the human line.

Source: Guide for the Perplexed (c. 1190), Part III, Ch.8

The Notebooks of Leonardo da Vinci (1883), II Linear Perspective