“Tacitus appears to have been as great an enthusiast as Petrarch for the revival of the republic and universal empire. He has exerted the vengeance of history upon the emperors, but has veiled the conspiracies against them, and the incorrigible corruption of the people which probably provoked their most atrocious cruelties. Tyranny can scarcely be practised upon a virtuous and wise people.”

“...Cities may be rebuilt, and a People reduced to Poverty, may acquire fresh Property: But a Constitution of Government once changed from Freedom, can never be restored. Liberty once lost is lost forever. When the People once surrendered their share in the Legislature, and their Right of defending the Limitations upon the Government, and of resisting every Encroachment upon them, they can never regain it.”

“...The Presidential election has given me less anxiety than I myself could have imagined. The next administration will be a troublesome one, to whomsoever it falls, and our John has been too much worn to contend much longer with conflicting factions. I call him our John, because, when you were at the Cul de sac at Paris, he appeared to me to be almost as much your boy as mine....As to the decision of your author, though I wish to see the book {Flourens’s Experiments on the functions of the nervous system in vertebrated animals}, I look upon it as a mere game at push-pin. Incision-knives will never discover the distinction between matter and spirit, or whether there is any or not. That there is an active principle of power in the universe, is apparent; but in what substance that active principle resides, is past our investigation. The faculties of our understanding are not adequate to penetrate the universe. Let us do our duty, which is to do as we would be done by; and that, one would think, could not be difficult, if we honestly aim at it.Your university is a noble employment in your old age, and your ardor for its success does you honor; but I do not approve of your sending to Europe for tutors and professors. I do believe there are sufficient scholars in America, to fill your professorships and tutorships with more active ingenuity and independent minds than you can bring from Europe. The Europeans are all deeply tainted with prejudices, both ecclesiastical and temporal, which they can never get rid of. They are all infected with episcopal and presbyterian creeds, and confessions of faith. They all believe that great Principle which has produced this boundless universe, Newton’s universe and Herschel’s universe, came down to this little ball, to be spit upon by Jews. And until this awful blasphemy is got rid of, there never will be any liberal science in the world.I salute your fireside with best wishes and best affections for their health, wealth and prosperity.{Letter to Thomas Jefferson, 22 January, 1825}”

“I almost shudder at the thought of alluding to the most fatal example of the abuses of grief which the history of mankind has preserved - the Cross. Consider what calamities that engine of grief has produced! With the rational respect that is due to it, knavish priests have added prostitutions of it, that fill or might fill the blackest and bloodiest pages of human history.{Letter to Thomas Jefferson, September 3, 1816]”

“I do not say that democracy has been more pernicious on the whole, and in the long run, than monarchy or aristocracy. Democracy has never been and never can be so durable as aristocracy or monarchy; but while it lasts, it is more bloody than either. … Remember, democracy never lasts long. It soon wastes, exhausts, and murders itself. There never was a democracy yet that did not commit suicide. It is in vain to say that democracy is less vain, less proud, less selfish, less ambitious, or less avaricious than aristocracy or monarchy. It is not true, in fact, and nowhere appears in history. Those passions are the same in all men, under all forms of simple government, and when unchecked, produce the same effects of fraud, violence, and cruelty. When clear prospects are opened before vanity, pride, avarice, or ambition, for their easy gratification, it is hard for the most considerate philosophers and the most conscientious moralists to resist the temptation. Individuals have conquered themselves. Nations and large bodies of men, never.”

“The Universe, as has been observed before, is an unsettlingly big place, a fact which for the sake of a quiet life most people tend to ignore.”

“When legislature is corrupted, the people are undone.”