On Liberty · ¶88

Thirdly, even if the received opinion be not only true, but the whole truth; unless it is suffered to be, and actually is, vigorously and earnestly contested, it will, by most of those who receive it, be held in the manner of a prejudice, with little comprehension or feeling of its rational grounds. And not only this, but, fourthly, the meaning of the doctrine itself will be in danger of being lost, or enfeebled, and deprived of its vital effect on the character and conduct: the dogma becoming a mere formal profession, inefficacious for good, but cumbering the ground, and preventing the growth of any real and heartfelt conviction, from reason or personal experience.

John Stuart Mill · Walter Scott Publishing edition, with W. L. Courtney’s introduction · Gutenberg #34901
John Stuart Mill · Walter Scott Publishing edition, with W. L. Courtney’s introduction · Gutenberg #34901
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