“Ideas have consequences, and totally erroneous ideas are likely to have destructive consequences.”

Hayek's Journey: The Mind of Friedrich Hayek (2003)

Source: The Evolution of Civilizations (1961) (Second Edition 1979), Chapter 1, Scientific Method and the Social Sciences, p. 40

The Myth of Sisyphus (1942), The Absurd Man
Context: All systems of morality are based on the idea that an action has consequences that legitimize or cancel it. A mind imbued with the absurd merely judges that those consequences must be considered calmly. It is ready to pay up. In other words, there may be responsible persons, but there are no guilty ones, in its opinion. At very most, such a mind will consent to use past experience as a basis for its future actions.

Source: Charles Dickens (1906), Ch 1 : "The Dickens Period"

as quoted in Directing the Film, Ed Sherman, 1976.

Tragedy and the Common Man (1949)
Context: I think the tragic feeling is evoked in us when we are in the presence of a character who is ready to lay down his life, if need be, to secure one thing — his sense of personal dignity. From Orestes to Hamlet, Medea to Macbeth, the underlying struggle is that of the individual attempting to gain his "rightful" position in his society.
Sometimes he is one who has been displaced from it, sometimes one who seeks to attain it for the first time, but the fateful wound from which the inevitable events spiral is the wound of indignity and its dominant force is indignation. Tragedy, then, is the consequence of a man's total compulsion to evaluate himself justly.

Alive