Watch against any fallacies in your ideas which may arise, not from disingenuousness, but from allowing yourself in moments of feeling to think vaguely, and not to attach precise meaning to your words. Without any cold caution of expression, it is a duty we owe to God's truth, and to our own happiness and the happiness of those around us, to think and speak as correctly as we can. Almost all heresy, schism, and misunderstandings, between either churches or individuals who ought to be one, have arisen from this fault of an involved and vague style of thought.

MS. 1842.