Philosophy does not do battle against such pleasures as are natural, provided that temperance accompanies them; she teaches moderation in such things not avoidance.

[La philosophie n’estrive point contre les voluptez naturelles, pourveu que la mesure y soit joincte : & en presche la moderation, non la fuitte.]

Michel de Montaigne (1533-1592) French essayist

Essays, Book 3, ch. 5 (3.5), “Of Some Verses of Virgil [Sur des vers de Virgile]” (1586) [tr. Screech (1987)]
    (Source)

The first part of this quotation (to the semi-colon) appeared in the 1588 edition; the final phrase about moderation was added for the 1595 edition.

(Source (French)). Alternate translations:

Philosophie contends not against naturall delights, so that due measure be joined therewith; and alloweth the moderation, not the shunning of them.
[tr. Florio (1603)]

Philosophy does not contend against natural Pleasures, provided they be moderate: and only preaches Moderation, not a total Abstinence.
[tr. Cotton (1686)]

Philosophy does not contend against natural pleasures, provided they be moderate, and only preaches moderation, not a total abstinence.
[tr. Cotton/Hazlitt (1877)]

Philosophy does not at all contend against natural pleasures, provided due measure be kept; and it preaches moderation in them, not avoidance.
[tr. Ives (1925)]

Philosophy does not contend against natural pleasures, provided that measure is observed, and it preaches moderation in them, not flight.
[tr. Zeitlin (1934)]

Philosophy does not strive against natural pleasures, provided that measure goes with them; she preaches moderation in them, not flight.
[tr. Frame (1943)]