Compassion is a call, a demand of nature, to relieve the unhappy as hunger is a natural call for food

Happiness does not consist in self-love.

Virtue, as such, naturally procures considerable advantages to the virtuous.

Man may act according to that principle or inclination which for the present happens to be strongest, and yet act in a way disproportionate to, and violate his real proper nature.

The principle we call self-love never seeks anything external for the sake of the thing, but only as a means of happiness or good: particular affections rest in the external things themselves.

The object of self-love is expressed in the term self; and every appetite of sense, and every particular affection of the heart, are equally interested or disinterested, because the objects of them all are equally self or somewhat else.

It is not at all incredible, that a book which has been so long in the possession of mankind should contain many truths as yet undiscovered.