“The autonomous individual, striving to realize himself and prove his worth, has created all that is great in literature, art, music, science and technology. The autonomous individual, also, when he can neither realize himself nor justify his existence by his own efforts, is a breeding call of frustration, and the seed of the convulsions which shake our world to its foundations.”
Section 29
The Passionate State Of Mind, and Other Aphorisms (1955)
Context: A fateful process is set in motion when the individual is released "to the freedom of his own impotence" and left to justify his existence by his own efforts. The autonomous individual, striving to realize himself and prove his worth, has created all that is great in literature, art, music, science and technology. The autonomous individual, also, when he can neither realize himself nor justify his existence by his own efforts, is a breeding call of frustration, and the seed of the convulsions which shake our world to its foundations.
The individual on his own is stable only so long as he is possessed of self-esteem. The maintenance of self-esteem is a continuous task which taxes all of the individual's powers and inner resources. We have to prove our worth and justify our existence anew each day. When, for whatever reason, self-esteem is unattainable, the autonomous individual becomes a highly explosive entity. He turns away from an unpromising self and plunges into the pursuit of pride — the explosive substitute for self-esteem. All social disturbances and upheavals have their roots in crises of individual self-esteem, and the great endeavor in which the masses most readily unite is basically a search for pride.
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Eric Hoffer 240
American philosopher 1898–1983Related quotes

Une telle morale [la morale existentialiste] est-elle ou non un individualisme? Oui, si l’on entend par là qu’elle accorde à l’individu une valeur absolue et qu’elle reconnaît qu’a lui seul le pouvoir de fonder son existence. Elle est individualisme au sens où les sagesses antiques, la morale chrétienne du salut, l’idéal de la vertu kantienne méritent aussi ce nom ; elle s’oppose aux doctrines totalitaires qui dressent par-delà I’homme le mirage de l’Humanité. Mais elle n’est pas un solipsisme, puisque l’individu ne se définit que par sa relation au monde et aux autres individus, il n’existe qu’en se transcendant et sa liberté ne peut s’accomplir qu’à travers la liberté d’autrui. Il justifie son existence par un mouvement qui, comme elle, jaillit du coeur de lui-même, mais qui aboutit hors de lui.
Cet individualisme ne conduit pas à l’anarchie du bon plaisir. L’homme est libre ; mais il trouve sa loi dans sa liberté même. D’abord il doit assumer sa liberté et non la fuir; il l’assume par un mouvement constructif : on n’existe pas sans faire; et aussi par un mouvement négatif qui refuse l’oppression pour soi et pour autrui.
Conclusion http://www.marxists.org/reference/subject/ethics/de-beauvoir/ambiguity/ch04.htm
The Ethics of Ambiguity (1947)

“While no one liberates himself by his own efforts alone, neither is he liberated by others.”
Pedagogia do oprimido (Pedagogy of the Oppressed) (1968, English trans. 1970)

2000s, Bush's Lincolnian Challenge (2002)

“The free individual has been justified as his own master; the state as his servant.”
Commencement Address at Columbia University http://www.eisenhower.archives.gov/education/bsa/citizenship_merit_badge/eisenhower_citizenship_quotations.pdf (1 June 1949)
1940s

Third Thesis
Idea for a Universal History from a Cosmopolitan Point of View (1784)

Source: The Income Tax: Root of All Evil (1954), p. 12

In 1961; p. 67
1960 -1964, "Yves Klein, 1928 – 1962, Selected Writings"