The actions of men are subject to general immutable laws expressed in statistics.
The philosophers, he says, "are those who are able to grasp the eternal and immutable"; they are "those who set their affections on that which in each case really exists" (Rep. 480).
On returning to France, to the bosom of the great, strong, magnificent, peaceful, and glorious fatherland, I should have proclaimed her frontiers immutable; all future wars purely defensive, all aggrandizement antinational.
Whether Plato understood these forms as actually existent apart from all the particular examples, or as being of the nature of immutable physical laws, is matter of discussion.
At the same time he marked the immutable conditions to which even genius must submit if it is to succeed in its appeal to our sympathies.