If Descartes’ main aspirations are directed towards a “first truth,” it follows necessarily that the sphere of pure possibilities, and with it the sphere of “probability,” is excluded from philosophy. Thus Descartes ignores, for example, both the art of rhetoric and history, as fields in which “the probable,” rather than the truth prevails.

The idea that consciousness is a mystery is a prejudice inherited from monotheism. The early seventeenth-century French philosopher René Descartes believed that animals other than humans are insensate machines. Obviously, this was a restatement in rationalist terms of the Christian belief that only humans have souls. Even if mind and matter were categorically distinct, that would not mean humans alone have minds. It was reported that in order to test his theories, Descartes used to throw animals out of the window and observe their reactions. Looking at behaviour of this kind, one might reasonably conclude that humans are the senseless machines.

Having left us with thought (not a soul), and extension (not a body), [Descartes] does not know how to account for the union of soul and body.

Descartes... his type of determinism is only partial. I call it disconnected... that the physical world and... our bodies, but not our minds operate mechanically... We're robots, but the mind is different... that "The will is by its nature so free that it can never be constrained." This is normally called Descartes' dualism... mind, soul or spirit, and matter... [M]atter operates according to one set of laws, and mind or spirit... to another.

In considering what Tess was not, he overlooked what she was, and forgot that the defective can be more than the entire

Starting with "I think," Descartes fixed his attention only on the "think," completely neglecting the "I." Now, this I is essential. For Man, and consequently the Philosopher, is not only Consciousness, but also—and above all—Self-Consciousness. Man is not only a being that thinks—i.e., reveals Being by Logos, by Speech formed of words that have a meaning. He reveals in addition—also by Speech—the being that reveals Being, the being that he himself is, the revealing being that he opposes to the revealed being by giving it the name Ich or Selbst, I or Self.

To accept the Church's monopoly of the subjective life, or to surrender it to muddled magic and vulgar superstition, was to set limits to the examination of human experience and the pursuit of truth. The inner life could not remain forever a no-man's land, where saints, gypsies, lords, beggars, artists, and lunatics had established squatters' rights and wasted precious human energy erecting an endless series of crazy, flimsy structures. In turning his back on the realities of subjective life, Descartes rejected the possibility of creating a unified world picture that would do justice to every aspect of human experience-that indispensable pre-condition for the 'next development of man.

"That is why I don't believe much in what Mr. Descartes said: "I think, therefore I am."

I think, therefore I'm lost in my thinking. I'm not there."

This mental activity, at first involuntary under the pressure of illness and suffering, gradually became second nature and led me finally to recognize that I was but an automaton devoid of free will in thought and action and merely responsible to the forces of the environment. Our bodies are of such complexity of structure, the motions we perform are so numerous and involved and the external impressions on our sense organs to such a degree delicate and elusive, that it is hard for the average person to grasp this fact. Yet nothing is more convincing to the trained investigator than the mechanistic theory of life which had been, in a measure, understood and propounded by Descartes three hundred years ago.

...Descartes who misled the whole chorus of modern philosophers, except Spinoza, by making them fall in love with themselves.

Descartes, for instance, in order to preserve the idea of free will, asserted that the human mind was something different from the physical world and did not follow its laws. In his view a person consists of two ingredients, a body and a soul. Bodies are nothing but ordinary machines, but the soul is not subject to scientific law.

Descartes' dualism... is explicitly contradicted by our theorem.

Descartes... fell back on his original confusion of matter with space—space being, according to him, the only form of substance, and all existing things but affections of space. This error... forms one of the ultimate foundations of the system of Spinoza.

De omnibus dubitandum, taught Descartes - doubt all things. Easily said - but how to do it? Try, for example to doubt that the laws of nature are always binding: one day a case may occur where nature makes an exception for some stone, and exempts it from the law of gravity. But how to find this stone, if one has the courage to admit such a possibility, even if one knew definitely that such a stone existed? p. 215