I am ... cogito ergo sum ... I think, therefore I am.

Cogito ergo sum. <i>(I think, therefore I am.)</i>

I think I am, therefore, I am... I think.

I think; therefore I am.

Je pense donc je suis

But immediately upon this I observed that, whilst I thus wished to think that all was false, it was absolutely necessary that I, who thus thought, should be somewhat; and as I observed that this truth, I think, therefore I am (COGITO ERGO SUM), was so certain and of such evidence that no ground of doubt, however extravagant, could be alleged by the sceptics capable of shaking it, I concluded that I might, without scruple, accept it as the first principle of the philosophy of which I was in search

Je pense, donc je suis; English: I think, therefore I am)

But immediately upon this I observed that, whilst I thus wished to think that all was false, it was absolutely necessary that I, who thus thought, should be somewhat; and as I observed that this truth, I think, therefore I am (cogito ergo sum), was so certain and of such evidence that no ground of doubt, however extravagant, could be alleged by the sceptics capable of shaking it, I concluded that I might, without scruple, accept it as the first principle of the philosophy of which I was in search … I thence concluded that I was a substance whose whole essence or nature consists only in thinking, and which, that it may exist, has need of no place, nor is dependent on any material thing; so that ‘I’, that is to say, the mind by which I am what I am, is wholly distinct from the body, and is even more easily known than the latter …

I am, therefore I'll think

Descartes, reasoning unconsciously according to the prejudices of the old metaphysics, and seeking an unshakable foundation for philosophy, an aliquid inconcussum, as it was said, imagined that he had found it in the self, and posited this principle: I think, therefore I am; Cogito, ergo sum. Descartes did not realize that his base, supposedly immobile, was mobility itself. Cogito, I think — these words express movement; and the conclusion, according to the original sense of the verb to be, sum, ειναι, ou חיח, (haïah), is still movement. He should have said: Moveor, ergo fio, I move, therefore I become!

One can ask why the I has to appear in the cogito {Descartes’ argument “I think therefore I am.}, since the cogito, if used rightly, is the awareness of pure consciousness, not directed at any fact or action. In fact the I is not necessary here, since it is never united directly to consciousness. One can even imagine a pure and self-aware consciousness which thinks of itself as impersonal spontaneity.

"Dubito, ergo cogito, ergo sum.

(English: "I doubt, therefore I think, therefore I am")"

Cogito ergo sum

"Cogito cogito ergo cogito sum — "I think that I think, therefore I think that I am;" as close an approach to certainty as any philosopher has yet made."