Mawson, C.O.S., ed. (18701938). Rogets International Thesaurus. 1922.
Class VI. Words Relating to the Sentient and Moral Powers
Section IV. Moral Affections
1. Moral Obligations
DUTY, what ought to be done, moral obligation, accountableness, liability, onus, responsibility; bounden -, imperative- duty; call, - of duty; accountability.
allegiance, fealty, tie; engagement (promise) [See Promise]; part; function, calling (business) [See Business].
OBSERVANCE, fulfillment, discharge, performance, acquittal, satisfaction, redemption; good behavior.
MORALITY, morals, decalogue; case of conscience; conscientiousness (probity) [See Probity]; conscience, inward monitor, still small voice within, sense of duty, tender conscience; the hell within [Paradise Lost].
PROPRIETY, fitness; dueness [See Dueness]; seemliness, amenableness, amenability, decorum, to prepon [Gr. τ&omictono; πρ&epsitono;πον]; the thing, the proper thing; the -right, - proper- thing to do.
[SCIENCE OF MORALS] ethics, ethology [obs. in this sense]; deontology, aretology [obs.]; moral -, ethical- philosophy; casuistry, polity.
BE THE DUTY OF, be incumbent on &c. adj.; be responsible &c. adj.; behoove, become, befit, beseem; belong to, pertain to; fall to ones lot; devolve on; lie upon, lie on ones head, lie at ones door; rest with, rest on the shoulders of.
take upon oneself (promise) [See Promise]; be -, become- -bound to, - sponsor for; incur a responsibility &c. n.; be -, stand -, lie- under an obligation; stand responsible for; have to answer for; owe it to oneself.
enter upon -, perform -, observe -, fulfill -, discharge -, adhere to -, acquit oneself of -, satisfy- -a duty, - an obligation; act ones part, redeem ones pledge, do justice to, be at ones post; do duty; do ones duty &c. (be virtuous) [See Virtue].
be on ones good behavior, mind ones Ps and Qs; walk the straight path.
IMPOSE A DUTY &c. n.; enjoin, require, exact; bind, - over; saddle with, prescribe, assign, call upon, look to, oblige.
OBLIGATORY, binding; imperative, peremptory; stringent (severe) [See Severity]; behooving &c. v.; incumbent on, chargeable on; under obligation; obliged by, bound by, tied by; saddled with.
due to, beholden to, bound to, indebted to; tied down; compromised (promised) [See Promise]; in duty bound.
AMENABLE, liable, accountable, responsible, answerable.
RIGHT, meet (due) [See Dueness]; moral, ethical, casuistical, conscientious, ethological.
with a safe conscience, as in duty bound, on good behavior, on ones own responsibility, at ones own risk, suo periculo [L.]; in foro conscientiæ [L.]; quamdiu se bene gesserit [L.]; at ones post.
Dura lex sed lex.
Dulce et decorum est pro patria mori.
Honos habet onus.
Leve fit quod bene fertur onus.Ovid
Simple duty hath no place for fear.Whittier
Stern daughter of the voice of God.Wordsworth
There is a higher law than the Constitution.Wm. Seward
So nigh is grandeur to our dust, So near is God to man, When Duty whispers low, Thou must, The youth replies, I can!Emerson
Labor to keep alive in your breast that little spark of celestial fireconscience.George Washington
Thus conscience does make cowards of us all.Hamlet
And voices that we thought were fled Arise and call us, and we come.Noyes