“All the marvels of science and the gains of culture belong to the nation as a whole, and never again will man’s brain and human genius be used for oppression and exploitation.”

Address to the United Nations (1964)

As quoted in Louis Pasteur, Free Lance of Science (1960) by René Jules Dubos, Ch. 3 : Pasteur in Action

Source: Anarcho-Syndicalism (1938), Ch. 1 "Anarchism: Its Aims and Purposes"
Context: Power operates only destructively, bent always on forcing every manifestation of life into the straitjacket of its laws. Its intellectual form of expression is dead dogma, its physical form brute force. And this unintelligence of its objectives sets its stamp on its supporters also and renders them stupid and brutal, even when they were originally endowed with the best of talents. One who is constantly striving to force everything into a mechanical order at last becomes a machine himself and loses all human feeling.
It was from the understanding of this that modern Anarchism was born and now draws its moral force. Only freedom can inspire men to great things and bring about social and political transformations. The art of ruling men has never been the art of educating men and inspiring them to a new shaping of their lives. Dreary compulsion has at its command only lifeless drill, which smothers any vital initiative at its birth and can bring forth only subjects, not free men. Freedom is the very essence of life, the impelling force in all intellectual and social development, the creator of every new outlook for the future of mankind. The liberation of man from economic exploitation and from intellectual and political oppression, which finds its finest expression in the world-philosophy of Anarchism, is the first prerequisite for the evolution of a higher social culture and a new humanity.

With the century, vol. 3

The Fabric of Mind (1985)

Speech to the Cambridge University Aeronautical Society, April 1925 in Trenchard, Man of Vision (1962) p. 519

Source: The Politics of Experience (1967), p. 2 of Introduction
Context: We are all murderers and prostitutes — no matter to what culture, society, class, nation, we belong, no matter how normal, moral, or mature we take ourselves to be.
Humanity is estranged from its authentic possibilities. This basic vision prevents us from taking any unequivocal view of the sanity of common sense, or of the madness of the so-called madman. … Our alientation goes to the roots. The realisation of this is the essential springboard for any serious reflection on any aspect of present inter-human life.

From Naţionalitatea în artă ("Nationality in Art"), Bucureşti: Cartea Romaneasca, 1905.

Part I : Contemporary Issues in Science, Ch. 1 : "The Scientist as Rebel"; this first appeared in New York Review of Books (25 May 1995).
The Scientist As Rebel (2006)
Context: There is no such thing as a unique scientific vision, any more than there is a unique poetic vision. Science is a mosaic of partial and conflicting visions. But there is one common element in these visions. The common element is rebellion against the restrictions imposed by the locally prevailing culture, Western or Eastern as the case may be. It is no more Western than it is Arab or Indian or Japanese or Chinese. Arabs and Indians and Japanese and Chinese had a big share in the development of modern science. And two thousand years earlier, the beginnings of science were as much Babylonian and Egyptian as Greek. One of the central facts about science is that it pays no attention to East and West and North and South and black and yellow and white. It belongs to everybody who is willing to make the effort to learn it. And what is true of science is true of poetry.... Poetry and science are gifts given to all of humanity.