As gratitude is a necessary and a glorious, so it is also an obvious, a cheap, and an easy virtue; so obvious, that wheresoever there is a life there is a place for it—so cheap that the covetous man may be grateful without expense—and so easy that the sluggard may be so, likewise, without labor. And yet it is not without its niceties too; for there may be a time, a place or occasion wherein I ought not to return a benefit; nay, wherein I may better disown it than deliver it.