
Nothing is more dangerous than an idea, when you have only one idea.
Alain · The source reads: “Rien n'est plus dangereux qu'une idèe, quand on n'a qu'une idèe. Nothing is more dangerous than an idea, when you have only one idea.”
Mindset quotes on how we think and what it makes of us, from Marcus Aurelius to Brené Brown, each checked to its source.

Alain · The source reads: “Rien n'est plus dangereux qu'une idèe, quand on n'a qu'une idèe. Nothing is more dangerous than an idea, when you have only one idea.”

Winston Churchill · From his history of the First World War.

Charlie Brown · The round-headed boy of Charles M. Schulz's Peanuts · Charlie Brown, in Charles Schulz's Peanuts.

Carlos Castaneda · From Journey to Ixtlan.

Winston Churchill · From his history of the Second World War.

Albert Einstein · From his speech at the Royal Albert Hall, 3 October 1933.

Winston Churchill · Churchill on judgment.

Georges Perec · The source reads: “To question the habitual. But that's just it, we're habituated to it. We don't question it, it doesn't question us, it doesn't seem to pose a problem, we live it without thinking, as if it carried within it neither questions nor answers, as if it weren't the bearer of any information. This is no longer even conditioning, it's anaesthesia.” · The Infra-Ordinary (1989)

Seneca · Thyestes

The Bible · Proverbs 23:7

Winston Churchill · The World Crisis (1923 to 1931), 22 June 1918

Pauline Oliveros · Sonic Meditations (1971), Native

Alex Trebek · The quiz show host, in his last year.


Winston Churchill · House of Commons, 15 November 1915

Ralph Waldo Emerson · Lectures and Biographical Sketches (1883), The Preacher

Marcus Aurelius · Meditations, IV, 3



Albert Einstein · From his Autobiographical Notes, written in 1946.

Winston Churchill · Churchill, who ran a world war from his bed in the mornings.

Winston Churchill · House of Commons, 23 May 1940

Ralph Waldo Emerson · The source reads: “A foolish consistency is the hobgoblin of little minds, adored by little statesmen and philosophers and divines. With consistency a great soul has simply nothing to do.” · Essays: First Series (1841), Self-Reliance

Albert Einstein · To Jacques Hadamard, 17 June 1944, on how he thought.
That is every quote on the shelf, all 92 of them.
92 quotes, dealt in a fresh order every day, so the page reads differently each morning, and every quote keeps its own page.
Every quote on GKBook is traced to the book, speech, letter or interview it came from before it is published. A famous line that cannot be traced is kept because people search for it, but it is labelled "Attributed to", and a line that belongs to someone else is labelled "Often credited to" with the real origin beside it.
The first pill opens the author's page with every quote of theirs on GKBook; the others open the categories the quote belongs to, such as Love Quotes or Wisdom Quotes.
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Every general-knowledge topic and the A-to-Z lists.
The world A to Z: flags, countries, the sciences, places, people, subjects.
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