Sentiment and principle are often mistaken for each other, though, in fact, they widely differ. Sentiment is the virtue of ideas; principle the virtue of action. Sentiment has its seat in the had; principle, in the heart. Sentiment suggest fine harangues and subtle distinctions; principle conceives just notions, and performs good actions in consequence of them. Sentiment refines away the simplicity of truth, and the plainness of piety; and "gives us virtue in words, and vice in deeds."
False modesty is the masterpiece of vanity: showing the vain man in such an illusory light that he appears in the reputation of the virtue quite opposite to the vice which constitutes his real character; it is a deceit.
As faintness is a disease of the body, so is vice a sickness of the mind. Wherefore, since we judge those that have corporal infirmities to be rather worthy of compassion than hatred, much more are they to be pitied, and not abhorred, whose minds are oppressed with wickedness, the greatest malady that may be.
My will does not produce the motive power to move my limbs. Rather, he who imparted motion to matter, and ordained its laws, shaped my will also; he thus joined together two utterly different things - the movement of matter and the decision of my will in such a way that whenever my will desires some action, the desired bodily movement will occur and vice versa, without there being any causation involved, or any influence of the one upon the other. It is just as if there were two clocks appropriately adjusted with reference to each other and the time of day in such a way that when one struck the hour the other immediately did likewise.
There is not a vice which more effectually contracts and deadens the feelings, which more completely makes a man’s affections center in himself, and excludes all others from partaking in them, than the desire of accumulating possessions. When the desire has once gotten hold of the heart, it shuts out all other considerations, but such as may promote its views. In its zeal for the attainment of its end, it is not delicate in the choice of means. As it closes the heart, so also it clouds the understanding. It cannot discern between right and wrong; it takes evil for good, and good for evil; it calls darkness light, and light darkness. Beware, then, of the beginning of covetousness, for you know not where it will end.