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Nothing more strikingly betrays the credulity of mankind than medicine. Quackery is a thing universal, and universally successful. In this case it becomes literally true that no imposition is too great for the credulity of men.

— Henry David Thoreau Attributed Pearls of Thought (1881)

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More quotes by Henry David Thoreau

Nature is full of genius, full of the divinity; so that not a snowflake escapes its fashioning hand.

Journals (1838)

Nothing is so much to be feared as fear. Atheism may comparatively be popular with God himself.

Journals (1838)

It is not enough to be industrious; so are the ants. What are you industrious about?

It requires more than a day's devotion to know and to possess the wealth of a day.

Life Without Principle (1863)

None can be an impartial or wise observer of human life but from the vantage ground of what we should call voluntary poverty.

Walden (1854)

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Attribution

Quote text and notes from Wikiquote: Henry David Thoreau (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.