Question: so, we get a sort of vicious circle: in order to raise productivity of labour we must save ourselves from starvation, and in order to save ourselves from starvation we must raise productivity of labour.
Answer: --> So, we get a sort of vicious circle: in order to raise productivity of labour we must save ourselves from starvation, and in order to save ourselves from starvation we must raise productivity of labour.

Question: the daily intake is normally divided into two doses, one in the morning, one in the evening.
Answer: --> The daily intake is normally divided into two doses, one in the morning, one in the evening.

Question: but it is incompatible with a stereotyped one that might have been the social model fifty years ago.
Answer:
--> But it is incompatible with a stereotyped one that might have been the social model fifty years ago.