In philosophy, ressentiment (/rəˌsɒ̃.tiˈmɒ̃/; French pronunciation: [ʁə.sɑ̃.ti.mɑ̃] ⓘ) is one of the forms of resentment or hostility. The concept was of particular interest to some 19th-century thinkers, most notably Friedrich Nietzsche. According to their use, ressentiment is a sense of hostility directed toward an object that one identifies as the cause of one's frustration, that is, an assignment of blame for one's frustration.[1] The sense of weakness or inferiority complex and perhaps even jealousy in the face of the "cause" generates a rejecting/justifying value system, or morality, which attacks or denies the perceived source of one's frustration. This value system is then used as a means of justifying one's own weaknesses by identifying the source of envy as objectively inferior, serving as a defense mechanism that prevents the resentful individual from addressing and overcoming their insecurities and flaws. The ego creates an enemy to insulate themselves from culpability.