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The chief obstacle... to our improvement in the moral and metaphysical sciences is the obscurity of the ideas, and ambiguity of the terms.

— David Hume An Enquiry Concerning Human Understanding (1748)

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More quotes by David Hume

Be a philosopher; but, amidst all your philosophy, be still a man.

An Enquiry Concerning Human Understanding (1748)

Beauty is no quality in things themselves: It exists merely in the mind which contemplates them; and each mind perceives a different beauty.

Essays, Moral, Political, and Literary (1741)

It is a great mortification to the vanity of man, that his utmost art and industry can never equal the meanest of nature's productions, either for beauty or value.

Essays, Moral, Political, and Literary (1741)

Where ambition can be so happy as to cover its enterprizes, even to the person himself, under the appearance of principle, it is the most incurable and inflexible of all human passions.

The History of England (1754)

Heaven and Hell suppose two distinct species of men, the good and the bad; but the greatest part of mankind float betwixt vice and virtue.

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The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents.

H. P. Lovecraft The Call of Cthulhu (1926)

All religions, arts and sciences are branches of the same tree. All these aspirations are directed toward ennobling man's life, lifting it from the sphere of mere physical existence and leading the individual towards freedom.

Albert Einstein Moral Decay (1937)

Science and religion are two human enterprises sharing many features.

Freeman Dyson Infinite in All Directions (1988)

To doubt everything or to believe everything are two equally convenient solutions; both dispense with the necessity of reflection.

Henri Poincaré Science and Hypothesis (1901)

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