“We shall convince France and the world, that we are not a degraded people, humiliated under a colonial spirit of fear and a sense of inferiority, fitted to be the miserable instruments of foreign influence, and regardless of national honor, character, and interest.”

“While our country remains untainted with the principles and manners which are now producing desolation in so many parts of the world; while she continues sincere, and incapable of insidious and impious policy, we shall have the strongest reason to rejoice our local destination. But should the people of America once become capable of that deep simulation towards one another, and towards foreign nations, which assumes the language of justice and moderation, while it is practising iniquity and extravagance, and displays in the most captivating manner the charming pictures of candour, frankness, and sincerity, while it is rioting in rapine and insolence, this country will be the most miserable habitation in the world.”

“Even mighty states and kingdoms are not exempted. If we look into history, we shall find some nations rising from contemptible beginnings and spreading their influence, until the whole globe is subjected to their ways. When they have reached the summit of grandeur, some minute and unsuspected cause commonly affects their ruin, and the empire of the world is transferred to some other place. Immortal Rome was at first but an insignificant village, inhabited only by a few abandoned ruffians, but by degrees it rose to a stupendous height, and excelled in arts and arms all the nations that preceded it. But the demolition of Carthage (what one should think should have established is in supreme dominion) by removing all danger, suffered it to sink into debauchery, and made it at length an easy prey to Barbarians.England immediately upon this began to increase (the particular and minute cause of which I am not historian enough to trace) in power and magnificence, and is now the greatest nation upon the globe.Soon after the reformation a few people came over into the new world for conscience sake. Perhaps this (apparently) trivial incident may transfer the great seat of empire into America. It looks likely to me. For if we can remove the turbulent Gallics, our people according to exactest computations, will in another century, become more numerous than England itself. Should this be the case, since we have (I may say) all the naval stores of the nation in our hands, it will be easy to obtain the mastery of the seas, and then the united force of all Europe will not be able to subdue us. The only way to keep us from setting up for ourselves is to disunite us. Divide et impera. Keep us in distinct colonies, and then, some great men from each colony, desiring the monarchy of the whole, they will destroy each others' influence and keep the country in equilibrio.Be not surprised that I am turned into politician. The whole town is immersed in politics.”

“As the Government of the United States of America is not, in any sense, founded on the Christian religion,—as it has in itself no character of enmity against the laws, religion, or tranquility, of Mussulmen [Muslims],—and as the said States never entered into any war or act of hostility against any Mahometan [Mohammedan] nation, it is declared by the parties that no pretext arising from religious opinions shall ever produce an interruption of the harmony existing between the two countries.[Adams submitted and signed the Treaty of Tripoli, 1797]”

“They shall not be expected to acknowledge us until we have acknowledged ourselves.”

“...Turn our thoughts, in the next place, to the characters of learned men. The priesthood have, in all ancient nations, nearly monopolized learning. Read over again all the accounts we have of Hindoos, Chaldeans, Persians, Greeks, Romans, Celts, Teutons, we shall find that priests had all the knowledge, and really governed all mankind. Examine Mahometanism, trace Christianity from its first promulgation; knowledge has been almost exclusively confined to the clergy. And, even since the Reformation, when or where has existed a Protestant or dissenting sect who would tolerate a free inquiry? The blackest billingsgate, the most ungentlemanly insolence, the most yahooish brutality is patiently endured, countenanced, propagated, and applauded. But touch a solemn truth in collision with a dogma of a sect, though capable of the clearest proof, and you will soon find you have disturbed a nest, and the hornets will swarm about your legs and hands, and fly into your face and eyes.[Letters to John Taylor, 1814, XVIII, p. 484]”

“God is an essence that we know nothing of. Until this awful blasphemy is got rid of, there never will be any liberal science in the world.”