All movements go too far.

Bertrand Russell (1872-1970) English mathematician and philosopher

“On Being Modern-Minded,” The Nation (1937-01-09)
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Full context:

All movements go too far, and this is certainly true of the movement toward subjectivity, which began with Luther and Descartes as an assertion of the individual and has culminated by an inherent logic in his complete subjection.

Collected in Unpopular Essays (1950).