An ideology is a complex of ideas or notions which represents itself to the thinker as an absolute truth for the interpretation of the world and his situation within it; it leads the thinker to accomplish an act of self-deception for the purpose of justification, obfuscation and evasion in some sense or other to his advantage.
Karl JaspersPhilosophy as practice does not mean its restriction to utility or applicability, that is, to what serves morality or produces serenity of soul.
Karl JaspersA scientific approach means knowing what one knows and what one doesn't. Absolute or complete knowledge is unscientific.
Karl JaspersThere is no God, cry the masses more and more vociferously; and with the loss of God man loses his sense of values — is, as it were, massacred because he feels himself of no account.
Karl Jaspers