Quotes with apt
The one great principle of the English law is, to make business for itself. There is no other principle distinctly, certainly, and consistently maintained through all its narrow turnings. Viewed by this light it becomes a coherent scheme, and not the monstrous maze the laity are apt to think it. Let them but once clearly perceive that its grand principle is to make business for itself at their expense, and surely they will cease to grumble.
Never open a book with weather. If it's only to create atmosphere, and not a character's reaction to the weather, you don't want to go on too long. The reader is apt to leaf ahead looking for people. There are exceptions. If you happen to be Barry Lopez, who has more ways to describe ice and snow than an Eskimo, you can do all the weather reporting you want.
From Leonard's 10 Rules of Writing, as appeared in The New York Times (July 16, 2001)
Advocates of capitalism are very apt to appeal to the sacred principles of liberty, which are embodied in one maxim: The fortunate must not be restrained in the exercise of tyranny over the unfortunate.
Sceptical Essays (1928)
We are apt to form romantic and exaggerated notions about the moral innocence of our ancestors. Ages of ignorance and simplicity are thought to be ages of purity. The direct contrary, I believe, is the case.
The History of English Poetry (1774-81)