
Commentarius in Posteriorum Analyticorum Libros (c. 1217-1220)
Source: Treatise Concerning Eternal and Immutable Morality (1731), Ch. 5, sct. 7
Commentarius in Posteriorum Analyticorum Libros (c. 1217-1220)
“The true sign of intelligence is not knowledge but imagination.”
Variant translation by Lin Yutang: "He who knows others is learned; he who knows himself is wise".
Source: Tao Te Ching, Ch. 33, as interpreted by Stephen Mitchell (1992)
Georg Wilhelm Friedrich Hegel, comparing Spinoza's philosophy to that of the Eleatics, in Lectures on the History of Philosophy (1896), Vol. 3, Ch. I : The Metaphysics of the Understanding, § 2 : Spinoza, p. 257
100 Years of Mathematics: a Personal Viewpoint (1981)
Source: Sayings of Sri Ramakrishna (1960), p. 138