"From each according to his ability, to each according to his needs."

"The product of mental labour – science – always stands far below its value, because the labour-time necessary to reproduce it has no relation at all to the labour-time required for its original produc…"

"The tradition of all dead generations weighs like a nightmare on the brains of the living."

"The country that is more developed industrially only shows, to the less developed, the image of its own future."

"Poor Boniface! You are constipated with your holy thoughts and reflections, since you can no longer relieve yourself in speech and writing! O admirable victim of profundity! O pious constipation!"