“A smart man isn't necessarily one who knows all the answers, but knows where to find them.”
Television Show "Kenny Rogers - Going Home"
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Nous cherchons tous le bonheur, mais sans savoir où, comme les ivrognes qui cherchent leur maison, sachant confusément qu'ils en ont une.
Notebooks (c.1735-c.1750)
A variation on this remark can be found in the same notebook: Men who look for happiness are like drunkards who cannot find their house but know that they have one [Les hommes qui cherchent le bonheur sont comme des ivrognes qui ne peuvent trouver leur maison, mais qui savent qu'ils en ont une].
Citas

“The skull regarded Ralph like one who knows all the answers but won't tell.”
Source: Lord of the Flies

Source: The Best That Money Can't Buy: Beyond Politics, Poverty, & War (2002), p. 18.

Source: The Idea of History (1946), p. 10

“He who knows all the answers has not been asked all the questions.”

'Scholastic and Bedside Teaching', Introductory Lecture to the Medical Class of Harvard University (6 Nov 1867). In Medical Essays 1842-1882 (1891), 302.