But there are more disorders of the mind than of the body, and they are of a more dangerous nature.

[At et morbi perniciosiores pluresque sunt animi quam corporis; hi enim ipsi odiosi sunt.]

Marcus Tullius Cicero (106-43 BC) Roman orator, statesman, philosopher

Tusculan Disputations [Tusculanae Disputationes], Book 3, ch. 3 (3.3) / sec. 5 (45 BC) [tr. Yonge (1853)]
    (Source)

(Source (Latin)). Alternate translations:

• "Whereas, in truth, there are more and more dangerous Diseases of the Soul, than of the Body" [tr. Wase (1643)]
• But there are more disorders of the mind than of the body, for the generality, and of a more severe nature." [tr. Main (1824)]
• "The diseases of the mind are more pernicious, as well as more numerous, than those of the body." [tr. Otis (1839)]
• "But there are more harmful disorders of the soul than of the body, and more of them." [tr. Peabody (1886)]
• "No, the sicknesses of the mind are both more destructive and more numerous than those of the body." [tr. Graver (2002)]