
Of the Origin and Progress of Language (Edinburgh and London: J. Balfour and T. Cadell, 2nd ed., 1774), Vol. I, Book II, Ch. II, pp. 224-225 https://archive.org/stream/originandprogre01conggoog#page/n251/mode/2up.
Source: A Memorial Containing Travels Through Life or Sundry Incidents in the Life of Dr Benjamin Rush
Of the Origin and Progress of Language (Edinburgh and London: J. Balfour and T. Cadell, 2nd ed., 1774), Vol. I, Book II, Ch. II, pp. 224-225 https://archive.org/stream/originandprogre01conggoog#page/n251/mode/2up.
December 1969; quote from a talk with his audience
Source: Artists talks 1969 – 1977, p. 12
Faculty is given by Nature, but it is our own fault that we make a perverse use of it.
Letter to Van Helmont, quoted in The Ethics of Diet: A Catena of Authorities Deprecatory of the Practice of Flesh-eating https://archive.org/stream/ethicsofdietcate00will/ethicsofdietcate00will#page/n3/mode/2up by Howard Williams (London: F. Pitman, 1883), pp. 103-104.
Letter to London merchant Peter Collinson (9 May 1753); reported in Labaree: "Papers of Benjamin Franklin", vol 4, pp 481-482.
Epistles