The U.S. refuses to learn from HUAC --- refuses to learn, in general

"The universities are hotbeds of heresy. At least they usually are; it is characteristic for them to be; they should be. They should be teeming with intellectual doctrines some of which the majority find useless or even false, and with moral doctrines some of which the majority find unattractive or even evil. And the diverse parties should dwell side by side, not with the tolerance of indifference, but embattled and cherishing each other: each should know that in its quest the contest with those who disagree will bring faster progress than would an unobstructed route."

Chandler Davis
From an Exile
1960

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Divisiones vero gratiarum sunt, idem autem Spiritus

διαιρέσεις δὲ χαρισμάτων εἰσίν, τὸ δὲ αὐτὸ πνεῦμα·

Now there are diversities of gifts, but the same Spirit.

[1 Corinthians 12:4]