Zdroj: Elements of the Philosophy of the Human Mind, 1792, p. 334 (in 1829 edition https://books.google.nl/books?id=VxtSAAAAMAAJ)
Dugald Stewart: Citáty v angličtine
Zdroj: Elements of the Philosophy of the Human Mind, 1792, p. 12
Dugald Stewart; reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 581
Zdroj: Elements of the Philosophy of the Human Mind, 1792, p. 247
Zdroj: Elements of the Philosophy of the Human Mind, 1792, p. 9; Lead paragraph (I)
Zdroj: Elements of the Philosophy of the Human Mind, 1792, p. 9; Lead paragraph (II)