Noun
The act of diffusing, or the state of being diffused; a spreading; extension; dissemination; circulation; dispersion.
The act of passing by osmosis through animal membranes, as in the distribution of poisons, gases, etc., through the body. Unlike absorption, diffusion may go on after death, that is, after the blood ceases to circulate.
Source: Webster's dictionaryThe advancement and diffusion of knowledge is the only guardian of true liberty. James Madison
Internal improvement and the diffusion of knowledge, so far as they can be promoted by the constitutional acts of the Federal Government, are of high importance. Andrew Jackson
Promote then as an object of primary importance, Institutions for the general diffusion of knowledge. In proportion as the structure of a government gives force to public opinion, it is essential that public opinion should be enlightened. George Washington
The progress of freedom depends more upon the maintenance of peace, the spread of commerce, and the diffusion of education, than upon the labors of cabinets and foreign offices. Richard Cobden
Knowledge is not simply another commodity. On the contrary. Knowledge is never used up. It increases by diffusion and grows by dispersion. Daniel J. Boorstin
On the diffusion of education among the people rest the preservation and perpetuation of our free institutions. Daniel Webster