Source: Socialism: Past and Future (1989), p. 1
“They believe in progress based on the use, under conditions of social justice and intellectual freedom, of all the positive experience accumulated by mankind.”
Progress, Coexistence and Intellectual Freedom (1968)
Context: Millions of people throughout the world are striving to put an end to poverty. They despise oppression, dogmatism, and demagogy (and their more extreme manifestations — racism, fascism, Stalinism, and Maoism). They believe in progress based on the use, under conditions of social justice and intellectual freedom, of all the positive experience accumulated by mankind.
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Andrei Sakharov 57
Soviet nuclear physicist and human rights activist 1921–1989Related quotes
Source: A Theory of Justice (1971; 1975; 1999), p. 216
Source: Political Liberalism (1993), p. 6

Source: Anarcho-Syndicalism (1938), Ch. 1 "Anarchism: Its Aims and Purposes"
Context: Anarchism recognises only the relative significance of ideas, institutions, and social conditions. It is, therefore not a fixed, self enclosed social system, but rather a definite trend in the historical development of mankind, which, in contrast with the intellectual guardianship of all clerical and governmental institutions, strives for the free unhindered unfolding of all the individual and social forces in life. Even freedom is only a relative, not an absolute concept, since it tends constantly to broaden its scope and to affect wider circles in manifold ways. For the Anarchist, freedom is not an abstract philosophical concept, but the vital concrete possibility for every human being to bring to full development all capacities and talents with which nature has endowed him, and turn them to social account. The less this natural development of man is interfered with by ecclesiastical or political guardianship, the more efficient and harmonious will human personality become, the more will it become the measure of the intellectual culture of the society in which it has grown.

Memoirs of a Revolutionist (1899) http://dwardmac.pitzer.edu/anarchist_archives/kropotkin/memoirs/memoirstoc.html Part IV, Sect. 3 http://dwardmac.pitzer.edu/anarchist_archives/kropotkin/memoirs/memoirs4_3.html
Context: Belief in an ice-cap reaching Middle Europe was at that time rank heresy; but before my eyes a grand picture was rising, and I wanted to draw it, with the thousands of details I saw in it; to use it as a key to the present distribution of floras and faunas; to open new horizons for geology and physical geography.
But what right had I to these highest joys, when all around me was nothing but misery and struggle for a mouldy bit of bread; when whatsoever I should spend to enable me to live in that world of higher emotions must needs be taken from the very mouths of those who grew the wheat and had not bread enough for their children? From somebody's mouth it must be taken, because the aggregate production of mankind remains still so low.
Knowledge is an immense power. Man must know. But we already know much! What if that knowledge — and only that — should become the possession of all? Would not science itself progress in leaps, and cause mankind to make strides in production, invention, and social creation, of which we are hardly in a condition now to measure the speed?

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.

University Graduation address (2 July 1963), published in Important Utterances of H. I. M. Emperor Haile Selassie I, 1963-1972 (1972), p. 22.
Context: Education is a means of sharpening the mind of man both spiritually and intellectually. It is a two-edged sword that can be used either for the progress of mankind or for its destruction. That is why it has been Our constant desire and endeavor to develop our education for the benefit of mankind.
A qualified man with vision, unmoved by daily selfish interests, will be led to right decisions by his conscience. In general, a man who knows from whence he comes and where he is going will co-operate with his fellow human beings. He will not be satisfied with merely doing his ordinary duties but will inspire others by his good example. You are being watched by the nation and you should realize that you will satisfy it if you do good; but if, on the contrary, you do evil, it will lose its hope and its confidence in you.
The Evolution of Modern Capitalism: A Study of Machine Production (1906), Ch. XVII Civilisation and Industrial Development
Context: Under socialized industry progress in the industrial arts would be slower and would absorb a smaller proportion of individual interest, in order that progress in the finer intellectual and moral arts might be faster, and might engage a larger share of life.<!--section 11, p. 421

Section 8 : Suffering and Consolation
Founding Address (1876), Life and Destiny (1913)
Context: The condition of all progress is experience. We go wrong a thousand times before we find the right path. We struggle, and grope, and hurt ourselves until we learn the use of things, and this is true of things spiritual as well as of material things. Pain is unavoidable, but it acquires a new and higher meaning when we perceive that it is the price humanity must pay for an invaluable good.