During the second half of the 4th century BC, profound changes occurred in the financing of public institutions. Without the backing or funding from the wealthy, at least symbolically, the legitimacy of these institutions could be called into question by the city. The idea emerged that the rich people were not contributing unless required or compelled to do so. At the same time, around 355 BC, Demosthenes mentioned the lack of funding from the wealthy in the "Against Leptines" and Xenophon in "Poroi".