Particulars are frequently fallible, but universals never. Occult philosophy lays bare Nature in her complete nakedness, and alone contemplates the wisdom of universals by the eyes of intelligence. Accustomed to partake of the rivers which flow from the Fountain of Life, it is unacquainted with grossness and with clouded waters.

Robert Fludd, cited in: Arthur Edward Waite (1887). The Real History of the Rosicrucians Founded on Their Own Manifestoes. p. 290