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For many things we can find substitutes, but there is not now, nor will there ever be, a substitute for creative thought.
--
in Chemical and Engineering News, November 10, 1952, as quoted by Alan Tower Waterman in Research for National Defense, in the Bulletin of the Atomic Scientists (March 1953), Vol. 9, No. 2,ISSN 0096-3402, published by Educational Foundation for Nuclear Science, Inc., p. 39.

 

Crawford Greenewalt

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This pursuit of security in the past, this attempt to find a haven in a fixed dogma and an organizational hierarchy as substitutes for creative thought and praxis is bitter evidence of how little many revolutionaries are capable of 'revolutionizing themselves and things,' much less of revolutionizing society as a whole. The deep-rooted conservatism of the People's Labor Party 'revolutionaries' is almost painfully evident; the authoritarian leader and hierarchy replace the patriarch and the school bureaucracy; the discipline of the Movement replaces the discipline of bourgeois society; the authoritarian code of political obedience replaces the state; the credo of 'proletarian morality' replaces the mores of puritanism and the work ethic. The old substance of exploitative society reappears in new forms, draped in a red flag, decorated by portraits of Mao (or Castro or Che) and adorned with the little 'Red Book' and other sacred litanies.

 

Murray Bookchin

 

Overdrafts on aquifers are one reason some of our geologist colleagues are convinced that water shortages will bring the human population explosion to a halt. There are substitutes for oil; there is no substitute for fresh water.

 

Paul R. Ehrlich

 

Lenin's methods [of "hard" centralism and mistrust of the working class] lead to this: the party organization substitutes itself for the party, the central committee substitutes itself for the organization, and, finally, a "dictator" substitutes himself for the central committee. ... The party must seek the guarantee of its stability in its own base, in an active and self-reliant proletariat, and not in its top caucus ... which the revolution may suddenly sweep away with its wing.

 

Leon Trotsky

 

In Darwin's theory, you just have to substitute 'mutations' for his 'slight accidental variations' (just as quantum theory substitutes 'quantum jump' for 'continuous transfer of energy'). In all other respects little change was necessary in Darwin's theory...

 

Erwin Schrodinger

 

I like nature but not its substitutes. Naturalist art, illusionism, is a substitute for nature. I remember that in arguing with Mondrian (in Paris 1920s, ed.), he opposed art to nature saying that art is artificial and nature is natural. I do not share this opinion. I do not think that nature is in natural opposition to art. Art’s origins are natural.

 

Hans Arp