סַדָּנָא דארעה חַד הוּא

ביטוי (אנגלית)

The earth's anvil is one/ human nature is much the same hall over the world/ "the earth is one solid block"

הגדרה (אנגלית)

By extension: people's basic customs are similar everywhere. Human behavior is shared by all people. ("Sadan" means a block of wood or metal used for hammering or cutting something on it. Literally, from Aramaic: the world's anvil is one.)

("He sold him ten fields in ten provinces; once he took possession of one of them, he acquired them all! There, it is a case of 'the earth's anvil is one'" — Bava Batra 67a; and likewise: "And the earth's anvil is one, and therefore they know what lies before them and proceed in one course, from which they do not deviate right or left" — Berdyczewski, Writings, 2, 18; and likewise: "Every time life takes him to distant and strange places, it becomes clear to him again that indeed the earth's anvil is one" — H. Baeer, To the Place Where the Wind Goes, 335)