Extreme justice is often extreme injustice.

Extremes beget extremes. Pr.

Extreme in all things! hadst thou been betwixt, 5 / Thy throne had still been thine, or never been. Byron.

Extremes in nature equal ends produce; / In man they join to some mysterious use. Pope.

Extremes meet. Pr.

Extremes, though contrary, have the like effects; extreme heat mortifies, like extreme cold; extreme love breeds satiety as well as extreme hatred; and too violent rigour tempts chastity as much as too much license. Chapman.

Extremis malis extrema remedia—Extreme remedies for extreme evils. Pr.

Extremity is the trier of spirits. Coriol. iv. 1. 10

Exuerint sylvestrem animum, cultuque frequenti, / In quascunque voces artes, haud tarda sequentur—They lay aside their rustic ideas, and by repeated instruction will advance apace into whatever arts you may initiate them. Virg.

Ex umbra in solem—Out of the shade into the sunshine. Pr.