And though it be their sin and vanity that is the cause, it is nevertheless your sin to be the unnecessary occasion: for you must consider that you live among diseased souls. And you must not lay a stumblingblock in their way, nor blow up the fire of their lust, nor make your ornaments their snares; but you must walk among sinful persons, as you would do with a candle among straw or gunpowder; or else you may see the flame which you would not foresee, when it is too late to quench it.

It is as hard a thing to maintain a sound understanding, a tender conscience, a lively, gracious, heavenly spirit, and an upright life in the midst of contention, as to keep your candle lighted in the greatest storms.

'Tis hard preaching a stone into tears, or making a rock to tremble.

We are ignorant of things necessary, because we learn things superfluous and unnecessary

It is not the reading of many books which is necessary to make a man wise or good, but the well-reading of a few, could he be sure to have the best. And it is not possible to read over many on the same subject without a great deal of loss of precious time.

Screw the truth into men's minds.

The heart is naturally hard, and grows harder by custom in sin, especially by long abuse of mercy, neglect of the means of grace, and resisteing the spirit of grace.