With his usual facility of making concessions to other principles, he

says it is not easy to determine how far our natural sentiments may be
altered by custom, education, and example: while it would be
unreasonable to conclude that all is derived from these sources
With his usual facility of making concessions to other principles, he
says it is not easy to determine how far our natural sentiments may be
altered by custom, education, and example: while it would be
unreasonable to conclude that all is derived from these sources. That
part of our moral constitution depending on instinct is liable to be
corrupted by custom and education to almost any length; but the most
depraved can never sink so low as to lose all moral discernment, all
ideas of just and unjust; of which he offers the singular proof that
men are never wanting in resentment when they are _themselves_ the
objects of ill-treatment.