“Never ignore a gut feeling, but never believe that's enough.”

Source: The Knitting Diaries: The Twenty-First Wish\Coming Unraveled\Home to Summer Island

Interview with Four Corners, ABC TV, 19 February 1996.

Como los ignorantes no se conocen, tampoco buscan lo que les falta. Serían sabios algunos si no creyessen que lo son.
Maxim 176 (p. 100)
The Art of Worldly Wisdom (1647)

Source: Speech in the House of Commons (14 May 1866)

Variant: If a nation expects to be ignorant and free, in a state of civilization, it expects what never was and never will be.

Source: Brave New World Revisited (1958), Chapter 4 (p. 34)

Foreword
is 5 (1926)
Context: There are certain things in which one is unable to believe for the simple reason that he never ceases to feel them. Things of this sort— things which are always inside of us and in fact are us and which consequently will not be pushed off or away where we can begin thinking about them— are no longer things; they, and the us which they are, equals A Verb; an IS.

Source: Space Chantey (1968), Ch. 5, on Polyphemia
Context: Roadstrum had always believed that he had troubles enough of his own. He seldom borrowed trouble, and never on usurious terms. He knew that it was a solid thing that sheep do not gather in taverns and drink beer, not even potato beer; that they do not sing, not even badly; that they do not tell stories. But a stranger can easily make trouble for himself on a strange world by challenging local customs.
"But I am the greet Roadstrum," he said, suddenly and loudly. "I am a great one for winning justice for the lowly, and I do not scare easily. I threw the great Atlas at the wrestle, and who else can say as much? I suffer from the heroic sickness every third day about nightfall, and I am not sure whether this is the third day or not. I say you are men and not sheep. I say: Arise and be men indeed!"
"It has been tried before," said Roadstrum's friend, the sheep, "and it didn't work."
"You have tried a revolt, and it failed?"
"No, no, another man tried to incite us to revolt, and failed."