Source: Before Galileo, The Birth of Modern Science in Medieval Europe (2012), p. 287
“We speak of a person being “under the influence” of alcohol, or heroin, or amphetamine, and believe that these substances affect him so profoundly as to render him utterly helpless in their grip. We thus consider it scientifically justified to take the most stringent precautions against these things and often prohibit their nonmedical, or even their medical, use. But a person may be under the influence not only of material substances but also of spiritual ideas and sentiments, such as patriotism, Catholicism, or Communism. But we are not afraid of these influences, and believe that each person is, or ought to be, capable of fending for himself.”
Source: The Second Sin (1973), pp. 65-66.
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Thomas Szasz 70
Hungarian psychiatrist 1920–2012Related quotes

Introductory Epistle
On the Infinite Universe and Worlds (1584)

Source: The Black Swan: The Impact of the Highly Improbable (2007), p. xxix
Source: "Social Behavior as Exchange," 1958, p. 606
“Usually, if we hate, it is the shadow of the person that we hate, rather than the substance.”
"Hate Is Rarely a Personal Matter"
The Best of Sydney J. Harris (1975)
Context: Usually, if we hate, it is the shadow of the person that we hate, rather than the substance. We may hate a person because he reminds us of someone we feared and disliked when younger; or because we see in him some gross caricature of what we find repugnant in ourself; or because he symbolizes an attitude that seems to threaten us.

On Freedom (1958)
Context: Although I consider our political world to be the best of which we have any historical knowledge, we should beware of attributing this fact to democracy or to freedom. Freedom is not a supplier who delivers goods to our door. Democracy does not ensure that anything is accomplished — certainly not an economic miracle. It is wrong and dangerous to extol freedom by telling people that they will certainly be all right once they are free. How someone fares in life is largely a matter of luck or grace, and to a comparatively small degree perhaps also of competence, diligence, and other virtues. The most we can say of democracy or freedom is that they give our personal abilities a little more influence on our well-being.

The geometric point has, therefore, been given its material form, in the first instance, in writing. It belongs to language and signifies silence.
1920 - 1930, Point and line to plane, 1926

"Under the Influence" (song)
("Under the Influence" on YouTube (with lyrics)) https://www.youtube.com/watch?v=f4Ow3lFtNhI
Studio albums, Playing in the Shadows (2011)