“Those things, which are experienced to be in their whole nature, or in their most remarkable properties, so contrary to animal life, as in a small quantity to prove destructive to it, are called Poisons: whether they are hurtful by being taken inwardly at the mouth, or communicated to the body externally by a wound.”

“Every phenomenon can be experienced in two ways. These two ways are not arbitrary, but are bound up with the phenomenon – developing out of its nature and characteristics : Externally – or – inwardly.”

“The whole train of animated beings, from the simplest and oldest up to the highest and most recent, are, then, to be regarded as a series of advances of the principle of development, which have depended upon external physical circumstances, to which the resulting animals are appropriate.”

“All things will be in danger of being taken in a sense different from their own proper sense, and, whilst taken in that different sense, of losing their proper one, if they are called by a name which differs from their natural designation. Fidelity in names secures the safe appreciation of properties.”
Omnia periclitabuntur aliter accipi quam sunt, et amittere quod sunt dum aliter accipiuntur, si aliter quam sunt cognominantur. Fides nominum salus est proprietatum.

“God is the most noble of beings. Now it is impossible for a body to be the most noble of beings; for a body must be either animate or inanimate; and an animate body is manifestly nobler than any inanimate body. But an animate body is not animate precisely as body; otherwise all bodies would be animate. Therefore its animation depends upon some other thing, as our body depends for its animation on the soul. Hence that by which a body becomes animated must be nobler than the body. Therefore it is impossible that God should be a body.”

“The Viper has always been so remarkable for its venom, that the most remote antiquity made it an emblem of what is hurtful and destructive. Nay, so terrible was the nature of these creatures, that they were very commonly thought to be sent as executioners of divine vengeance upon mankind for enormous crimes, which had escaped the common course of justice.”

“I must now explain what I mean by the quantity of action. A certain action is necessary for the carrying of a body from one point to another: this action depends on the velocity which the body has and the space which it describes; but it is neither the velocity nor the space taken separately. The quantity of action varies directly as the velocity and the length of path described; it is proportional to the sum of the spaces, each being multiplied by the velocity with which the body describes it. It is this quantity of action which is here the true expense (dépense) of nature, and which she economizes as much as possible in the motion of light.”

“Life is fully spiritual. Soul and body are the power. Body is very vulnerable to environmental disasters. That is why body is equal to destruction and experiencing-natured-oriented. Therefore, we must focus on the body less when the life faces challenges. Let spirit and soul take more lead.”

“There are, in fact, as I began to say above, not a few principles which are the special property of mathematics, such principles as are discovered by the common light of nature, require no demonstration, and which concern quantities primarily; then they are applied to other things, so far as the latter have something in common with quantities. Now there are more of these principles in mathematics than in the other theoretical sciences because of that very characteristic of the human understanding which seems to be such from the law of creation, that nothing can be known completely except quantities or by quantities. And so it happens that the conclusions of mathematics are most certain and indubitable.”

“Travel changes you. As you move through this life and this world you change things slightly, you leave marks behind, however small. And in return, life — and travel — leaves marks on you. Most of the time, those marks — on your body or on your heart — are beautiful. Often, though, they hurt.”