Adam Smith was alive and well when Montesquieu first noted that cold countries tend to be rich, and hot ones poor.
Since this productivity-based phenomenon was quantified by Ellsworth Huntington in 1915, American conservatives have hailed our national sang froid as an economic resource, witness the triumphant Presidential campaign of the coolest Republican ever to win the White House:
The people declared that they wanted their rights to have not a political but a judicial determination, and their independence and freedom continued and supported by having the ownership and control of their property, not in the Government, but in their own hands.
country are almost beyond computation. No mind can comprehend them. But the cost of our combined governments is likewise almost beyond definition."
-- Inaugural Address of President Calvin Coolidge