"Accordingly the individual producer will receive back what he gives to society, after deductions for government, education, and other social charges. He will give society his individual quota of labour. For example: the social working day consists in the sum total of individual working days; the individual labour time of the individual producer is the part of the social working day which he contributes; his share thereof. He will receive from society a certificate that he has performed so much work (after deducting his work for social funds), and with this certificate he will draw from the social provision of articles of consumption as much as a similar quantity of labour costs. The same quantity of labour as he will give to society in one form he will receive back in another.... The right of producers will be proportionate to the work they will perform: the equality will consist in the application of the same measure: labour." Because performances will vary in accordance with unequal gifts and degrees of diligence, an unequal distribution will actually take place during the transition period. Only in a fully developed Communistic society, after the distinction between intellectual and physical labour has disappeared, when productive activity has become a first need of life, when the all-round development of the individual and the productive forces has been achieved, and all the springs of co-operative riches flow abundantly; only then can the narrow middle-class idea of rights be improved on, and the Communist principle of equality be put into operation.