Cartesian doubt him. While methodic doubt has a nature, one need not hold that knowledge is impossible in order to apply the method of doubt. Indeed, Descartes' attempt to apply the method of doubt to the existence of himself spawned the proof of his famous saying, ""Cogito, ergo sum"" (I think, therefore I am). That is, Descartes tried to doubt his own existence, but found that even his doubting showed that he existed, since he could not doubt if he did not exist. Cartesian doubt Cartesian doubt is a form of methodological skepticism associated with the writings and methodology of René Descartes
ERGO Group each. The shares of ERGO Group AG are listed on the stock exchange under WKN 841852 and ISIN DE0008418526. 94.7% (since November 25, 2009 99.69% with the purpose to raise the participation to 100% by means of the so-called squeeze out) of the shares belong to Munich Re. ERGO Group ERGO (ERGO Group) is a group of insurance companies owned by Munich Re. ERGO is one of the largest insurance groups in Europe. It operates in over 30 countries, especially in Europe and Asia. In Europe, ERGO claims to be number 1 in the health and legal expenses insurance segments,