— Andrei Sakharov
Context: The division of mankind threatens it with destruction. Civilization is imperiled by: a universal thermonuclear war, catastrophic hunger for most of mankind, stupefaction from the narcotic of "mass culture," and bureaucratized dogmatism, a spreading of mass myths that put entire peoples and continents under the power of cruel and treacherous demagogues, and destruction or degeneration from the unforeseeable consequences of swift changes in the conditions of life on our planet.
In the face of these perils, any action increasing the division of mankind, any preaching of the incompatibility of world ideologies and nations is madness and a crime. Only universal cooperation under conditions of intellectual freedom and the lofty moral ideals of socialism and labor, accompanied by the elimination of dogmatism and pressures of the concealed interests of ruling classes, will preserve civilization.
The reader will understand that ideological collaboration cannot apply to those fanatical, sectarian, and extremist ideologies that reject all possibility of rapprochement, discussion, and compromise, for example, the ideologies of fascist, racist, militaristic, and Maoist demagogy.