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  5. Those who are really convinced that they have made progress ...

Those who are really convinced that they have made progress in science would not demand freedom for the new views to continue side by side with the old, but the substitution of the new views for the old.

Vladimir Lenin
Views, Progress, Sides
Vladimir Ilʹich Lenin, V. I. Lenin (1927). “Collected works of V. I. Lenin”
Those who are really convinced that they have made progress in science would not demand freedom for the new views to continue side by side with the old, but the substitution of the new views for the old.