But change is an event, which, as such, is possible only through a cause, and considered per se its non-existence is therefore possible, and we become cognizant of its contingency from the fact that it can exist only as the effect of a cause.
— from The Critique of Pure Reason by Immanuel Kant

Often it passes through first an acute and active stage due to irritation and then a chronic and comparatively passive stage due to heavier, inhibiting impingement.
— from Technic and Practice of Chiropractic by Joy Maxwell Loban

In the late years of the nineteenth century, he was already winning some renown in the West; it was picturesque that a Cantonese, a Christian physician, should engage in desperate conspiracies against the Manchu throne.
— from The Political Doctrines of Sun Yat-sen: An Exposition of the San Min Chu I by Paul Myron Anthony Linebarger