And I am not against peace, but I dread war camouflaged as peace. Therefore, if we wish to enjoy peace, we must wage war; if we fail to wage war, we shall never enjoy peace.

[Nec ego pacem nolo, sed pacis nomine bellum involutum reformido. Qua re si pace frui volumus, bellum gerendum est; si bellum omittimus, pace numquam fruemur.]

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

Philippics [Philippicae; Antonian Orations], No. 7, ch. 6 / sec. 19 (7.6/7.19) (43-01 BC) [tr. Manuwald (2007)]
    (Source)

On declaring a truce with Mark Antony and his forces, giving Antony's army a chance to grow in number.

(Source (Latin)). Other translations:

Nor have I any dislike to peace; only I do dread war disguised under the name of peace. Wherefore, if we wish to enjoy peace we must first wage war. If we shrink from war, peace we shall never have.
[tr. Yonge (1903)]

If we desire to enjoy peace, we must first wage war; if we shrink from war, we shall never enjoy peace.
[ed. Harbottle (1906)]

I do not refuse peace, but war clothed with the name of peace I dread much. Wherefore, if we wish to enjoy peace, we must wage war; if we reject war we shall never enjoy peace.
[tr. Ker (Loeb) (1926)]