For such is the work of philosophy. It cures souls, draws off vain anxieties, confers freedom from desires, drives away fears.

[Nam efficit hoc philosophia: medetur animis, inanes sollicitudines detrahit, cupiditatibus liberat, pellit timores.]

Marcus Tullius Cicero (106-43 BC) Roman orator, statesman, philosopher
Tusculan Disputations [Tusculanae Disputationes], Book 2, ch. 4 (2.4) / sec. 11 [Marcus] (45 BC) [tr. Peabody (1886)]
    (Source)

Original Latin. Alternate translations:

This is the proper work of Philosophy, it healeth the Distempers of the mind, removeth vain Disquiets, sets free from impetuous Desires, banisheth Fears
[tr. Wase (1643)]

For it is the effect of philosophy, which is the medicine of our souls; it discharges all groundless apprehensions, frees us from desires, drives away fears.
[tr. Main (1824)]

For such is the effect of philosophy. She heals the mind, banishes its vain solicitudes, delivers it from the chains of cupidity, expels its fearful apprehensions.
[tr. Otis (1839)]

It is the effect of philosophy, which is the medicine of our souls; it banishes all groundless apprehensions, frees us from desires, and drives away fears.
[tr. Yonge (1853)]

It is the effect of philosophy. It provides medicine for teh soul, takes away futile worries, frees us from desires, banishes fears.
[tr. Davie (2017)]