Nevertheless, a distinction must be made between skepticism as a philosophical thesis and skepticism as an attitude in life. As a philosophical thesis, it is a contradictory one, since it affirms the impossibility of knowing truth, although this affirmation itself claims to be true. Thus, skepticism as a thesis refutes itself in the very act of being formulated. The other aspect is different: this is the abstention from all judgments, skepticism in life, which neither affirms nor denies. This skepticism appears in history time and again, although here, too, it is doubtful whether human life can remain floating in this abstention without taking root in convictions.