"After 1910 there began in Vienna a movement which regarded Mach's positivist philosophy of science as having great importance for general intellectual life An attempt was made by a group of young men to retain the most essential points of Mach's positivism, especially his stand against the misuse of metaphysics in science. To this group belonged the mathematician H. Hahn, the political economist Otto Neurath, and the author of this book , at the time an instructor in theoretical physics in Vienna. We tried to supplement Mach's ideas by those of the French philosophy of science of Henri Poincaré and Pierre Duhem, and also to connect them with the investigations in logic of such authors as Couturat, Schröder, Hilbert, etc."

"From the point of view of the onlooker, the question of the existence of a Georgian newspaper in general, and the question of its content and trend in particular, may seem to settle themselves natural…"

"...in proposing our measures of commercial policy, I had no wish to rob others of the credit justly due to them. ... The name which ought to be, and will be, associated with the success of those measu…"

"The conscious and intelligent manipulation of the organized habits and opinions of the masses is an important element in democratic society. Those who manipulate this unseen mechanism of society const…"

"In 1919 we pledged our honour as a country that we would disarm as soon as possible, and other countries did the same. In the face of that Germany accepted the Treaty of Versailles. We had done nothin…"