State a moral case to a plowman and a professor. The former will decide it as well, and often better than the latter, because he has not been led astray by artificial rules.
Health is the requisite after morality
Self-interest, or rather self-love, or egoism, has been more plausibly substituted as the basis of morality.
With nations as with individuals our interests soundly calculated will ever be found inseparable from our moral duties.
Money, not morality, constitutes the principle of commercial nations.
Honesty and interest are as intimately connected in the public as in the private code of morality.
I never did, or countenanced, in public life, a single act inconsistent with the strictest good faith; having never believed there was one code of morality for a public, and another for a private man.
A nation, as a society, forms a moral person, and every member of it is personally responsible for his society.
Give up money, give up fame, give up science, give the earth itself and all it contains, rather than do an immoral act.
Nothing is unchangeable but the inherent and unalienable rights of man.
When wrongs are pressed because it is believed they will be borne, resistance becomes morality.