"The avoidance of little evils, little sins, little inconsistencies, little weaknesses, little follies, little indiscretions and imprudences, little foibles, little indulgences of self and of the flesh, little acts of indolence or indecision or slovenliness or cowardice, little equivocations or aberrations from high integrity, little touches of shabbiness and meanness, . . . little indifferences to the feelings or wishes of others, little outbreaks of temper, or crossness, or selfishness, or vanity - the avoidance of such little things as these goes far to make up at least the negative beauty of a holy life."
- Horatius Bonar
"When we realize a constant enemy of the soul abides within us, what diligence and watchfulness we should have! How woeful is the sloth and negligence then of so many who live blind and asleep to this reality of sin. there is an exceeding efficacy and power in the indwelling sin of believers, for it constantly inclines itself towards evil. We need to be awake, then, if our hearts would know the ways of god. Our enemy is not only upon us, as it was with Samson, but it is also in us."
- John Owen
(As quoted in The Discipline of Grace by Jerry Bridges)