“And fighting the battle of life is fighting against fearful odds, too. There are giants and dragons in this nineteenth century, and the golden casket that they guard is not so easy to win as it appears in the story-books.”

"The Idea of Righteousness"
1930s, Has Religion Made Useful Contributions to Civilization? (1930)
Context: With our present industrial technique we can, if we choose, provide a tolerable subsistence for everybody. We could also secure that the world's population should be stationary if we were not prevented by the political influence of churches which prefer war, pestilence, and famine to contraception. The knowledge exists by which universal happiness can be secured; the chief obstacle to its utilization for that purpose is the teaching of religion. Religion prevents our children from having a rational education; religion prevents us from removing fundamental causes of war; religion prevents us from teaching the ethic of scientific co-operation in place of the old fierce doctrines of sin and punishment. It is possible that mankind is on the threshold of a golden age; but, if so, it will be necessary first to slay the dragon that guards the door, and this dragon is religion.

Source: Simone Weil : An Anthology (1986), The Power of Words (1937), p. 222
Context: There is no area in our minds reserved for superstition, such as the Greeks had in their mythology; and superstition, under cover of an abstract vocabulary, has revenged itself by invading the entire realm of thought. Our science is like a store filled with the most subtle intellectual devices for solving the most complex problems, and yet we are almost incapable of applying the elementary principles of rational thought. In every sphere, we seem to have lost the very elements of intelligence: the ideas of limit, measure, degree, proportion, relation, comparison, contingency, interdependence, interrelation of means and ends. To keep to the social level, our political universe is peopled exclusively by myths and monsters; all it contains is absolutes and abstract entities. This is illustrated by all the words of our political and social vocabulary: nation, security, capitalism, communism, fascism, order, authority, property, democracy. We never use them in phrases such as: There is democracy to the extent that... or: There is capitalism in so far as... The use of expressions like "to the extent that" is beyond our intellectual capacity. Each of these words seems to represent for us an absolute reality, unaffected by conditions, or an absolute objective, independent of methods of action, or an absolute evil; and at the same time we make all these words mean, successively or simultaneously, anything whatsoever. Our lives are lived, in actual fact, among changing, varying realities, subject to the casual play of external necessities, and modifying themselves according to specific conditions within specific limits; and yet we act and strive and sacrifice ourselves and others by reference to fixed and isolated abstractions which cannot possibly be related either to one another or to any concrete facts. In this so-called age of technicians, the only battles we know how to fight are battles against windmills.

Source: Embassytown

This is cited to to Rommel‎'s Infanterie Greift An [Infantry Attacks] (1937) in World War II : The Definitive Visual History (2009) by Richard Holmes, p. 128, and Timelines of History (2011) by DK Publishing, p. 392, but to George S. Patton, in Patton's Principles : A Handbook for Managers Who Mean It! (1982) by Porter B. Williamson as well as Leadership (1990) by William Safire and Leonard Safir, p. 47
Disputed
Source: Rommel: In His Own Words

This is cited to Patton in Patton's Principles : A Handbook for Managers Who Mean It! (1982) by Porter B. Williamson as well as Leadership (1990) by William Safire and Leonard Safir, p. 47, but is also cited to Erwin Rommel‎ from his Infanterie Greift An [Infantry Attacks] (1937) in World War II : The Definitive Visual History (2009) by Richard Holmes, p. 128, and Timelines of History (2011) by DK Publishing, p. 392
Disputed

This quote is widely attributed to Margaret Thatcher on various websites, and also appears in a number of books, including The Concise Columbia Dictionary of Quotations, Columbia University Press (1989), ed. Robert Andrews, p. 320 : ISBN 0231069901. 9780231069908 , but without any further source information such as date, location or any other context.
One valid Thatcher quote which may be the basis for the version above appears in the Second Carlton Lecture http://www.margaretthatcher.org/document/105799 (‘Why Democracy Will Last’), delivered at the Carlton Club, London (November 26, 1984) : Mr. Chairman, each generation has to stand up for democracy. It can’t take anything for granted and may have to fight fundamental battles anew. You know that marvellous quotation from Goethe : ‘That which thy fathers bequeathed thee / Earn it anew if thou would possess it.’
Thatcher also expressed this thought in a Speech to Atlantic Bridge (May 14, 2003) http://www.margaretthatcher.org/document/111266, delivered at the St. Regis Hotel, New York City : My friends, every generation has to fight anew the battle for liberty.
Disputed

Source: The Beautiful and Damned

Source: https://www.youtube.com/watch?v=EJodTuDeoYg