“Mind-masses, once formed, are imperishable, their combinations are indissoluble; only the relative strength of these combinations is altered by the incoming of new mind masses.”
Gesammelte Mathematische Werke (1876)
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Bernhard Riemann 43
German mathematician 1826–1866Related quotes

Essay on the Principle of Population (1798; rev. through 1826)

“His form combined in one the strength of a man and a woman's grace.”
Source: Orlando: A Biography (1928), Ch. 3
Context: The sound of the trumpets died away and Orlando stood stark naked. No human being, since the world began, has ever looked more ravishing. His form combined in one the strength of a man and a woman's grace.

Source: Power and Innocence (1972), Ch. 11 : The Humanity of the Rebel