A man who should undertake to inquire into everything for himself, could devote to each thing but little time and attention. His task would keep his mind in perpetual unrest, which would prevent him from penetrating to the depth of any truth, or of grappling his mind indissolubly to any conviction. His intellect would be at once independent and powerless.
 Alexis de Tocqueville, Democracy in America (1840). copy citation

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Author Alexis de Tocqueville
Source Democracy in America
Topic unrest truth
Date 1840
Language English
Reference
Note Translated by Henry Reeve
Weblink http://www.gutenberg.org/files/816/816-h/816-h.htm

Context

“There is no philosopher of such great parts in the world, but that he believes a million of things on the faith of other people, and supposes a great many more truths than he demonstrates. This is not only necessary but desirable. A man who should undertake to inquire into everything for himself, could devote to each thing but little time and attention. His task would keep his mind in perpetual unrest, which would prevent him from penetrating to the depth of any truth, or of grappling his mind indissolubly to any conviction. His intellect would be at once independent and powerless. He must therefore make his choice from amongst the various objects of human belief, and he must adopt many opinions without discussion, in order to search the better into that smaller number which he sets apart for investigation.” source