Thomas Jefferson - Reason Quotes

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I like the power given the Legislature to levy taxes, and for that reason solely approve of the greater house being chosen by the people directly.

Thomas Jefferson
The diffusion of information and the arraignment of all abuses at the bar of public reason, I deem [one of] the essential principles of our government, and consequently [one of] those which ought to shape its administration.

Thomas Jefferson
Truth and reason are eternal. They have prevailed. And they will eternally prevail; however, in times and places they may be overborne for a while by violence, military, civil, or ecclesiastical.

Thomas Jefferson
We are not afraid to follow truth wherever it may lead, nor to tolerate any error so long as reason is left free to combat it.

Thomas Jefferson
I have so much confidence in the good sense of man, and his qualifications for self-government, that I am never afraid of the issue where reason is left free to exert her force.

Thomas Jefferson
It is an insult to our citizens to question whether they are rational beings or not, and blasphemy against religion to suppose it cannot stand the test of truth and reason.

Thomas Jefferson
I am not myself apt to be alarmed at innovations recommended by reason. That dread belongs to those whose interests or prejudices shrink from the advance of truth and science.

Thomas Jefferson
I was bold in the pursuit of knowledge, never fearing to follow truth and reason to whatever results they led, and bearding every authority which stood in their way.

Thomas Jefferson
The truth is, that the greatest enemies of the doctrine of Jesus are those, calling themselves the expositors of them, who have perverted them to the structure of a system of fancy absolutely incomprehensible, and without any foundation in his genuine words. And the day will come when the mystical generation of Jesus, by the supreme being as his father in the womb of a virgin will be classed with the fable of the generation of Minerva in the brain of Jupiter … But may we hope that the dawn of reason and freedom of thought in these United States will do away with this artificial scaffolding, and restore to us the primitive and genuine doctrines of this most venerated reformer of human errors.

Thomas Jefferson
The moral sense, or conscience, is as much a part of man as his leg or arm. It is given to all human beings in a stronger or weaker degree, as force of members is given them in a greater or less degree. It may be strengthened by exercise, as may any particular limb of the body. This sense is submitted, indeed, in some degree, to the guidance of reason; but it is a small stock which is required for this: even a less one than what we call common sense. State a moral case to a ploughman 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.

Thomas Jefferson
To talk of immaterial existences is to talk of nothings. To say that the human soul, angels, god, are immaterial, is to say they are nothings, or that there is no god, no angels, no soul. I cannot reason otherwise: but I believe I am supported in my creed of materialism by Locke, Tracy, and Stewart. At what age of the Christian church this heresy of immaterialism, this masked atheism, crept in, I do not know. But heresy it certainly is. [...] I am satisfied, and sufficiently occupied with the things which are, without tormenting or troubling myself about those which may indeed be, but of which I have no evidence.

Thomas Jefferson
They might need a preparatory discourse on the text of 'prove all things, hold fast that which is good,' in order to unlearn the lesson that reason is an unlawful guide in religion. They might startle on being first awaked from the dreams of the night, but they would rub their eyes at once, and look the spectres boldly in the face.

Thomas Jefferson
We have solved, by fair experiment, the great and interesting question whether freedom of religion is compatible with order in government and obedience to the laws. And we have experienced the quiet as well as the comfort which results from leaving every one to profess freely and openly those principles of religion which are the inductions of his own reason and the serious convictions of his own inquiries.

Thomas Jefferson
In fine, I repeat, you must lay aside all prejudice on both sides, and neither believe nor reject anything, because any other persons, or description of persons, have rejected or believed it. Your own reason is the only oracle given you by heaven, and you are answerable, not for the rightness, but uprightness of the decision.

Thomas Jefferson
When we consider how much climate contributes to the happiness of our condition, by the fine sensation it excites, and the productions it is the parent of, we have reason to value highly the accident of birth in such a one as that of Virginia.

Thomas Jefferson
In a republican nation whose citizens are to be led by reason and persuasion and not by force, the art of reasoning becomes of first importance.

Thomas Jefferson
A government held together by the bands of reason only, requires much compromise of opinion.

Thomas Jefferson
I have learned to be less confident in the conclusions of human reason, and give more credit to the honesty of contrary opinions.

Thomas Jefferson
I see too many proofs of the imperfection of human reason, to entertain wonder or intolerance at any difference of opinion on any subject; and acquiesce in that difference as easily as on a difference of feature or form; experience having long taught me the reasonableness of mutual sacrifices of opinion among those who are to act together for any common object, and the expediency of doing what good we can, when we cannot do all we would wish.

Thomas Jefferson
I am for freedom of religion, & against all maneuvres to bring about a legal ascendancy of one sect over another, for freedom of the press, and against all violations of the Constitution to silence by force and not by reason the complaints or criticisms, just or unjust, of our citizens against the conduct of their agents.

Thomas Jefferson
If a sect arises whose tenets would subvert morals, good sense has fair play and reasons and laughs it out of doors without suffering the State to be troubled with it.

Thomas Jefferson
When speaking of the new testament that you should read all the histories of Christ, as well of those whom a council of ecclesiastics have decided for us to be Pseudo-evangelists, as those they named Evangelists. Because these Pseudo-evangelists pretended to inspiration as much as the others, and you are to judge their pretensions by your own reason, & not by the reason of those ecclesiastics. Most of these are lost. There are some however still extant, collected by Fabricius which I will endeavor to get & send you.

Thomas Jefferson
Reason and free inquiry are the only effectual agents against error... They are the natural enemies of error, and of error only... If [free enquiry] be restrained now, the present corruptions will be protected, and new ones encouraged.

Thomas Jefferson
Man once surrendering his reason, has no remaining guard against absurdities the most monstrous, and like a ship without rudder, is the sport of every wind. With such persons, gullibility, which they call faith, takes the helm from the hand of reason, and the mind becomes a wreck.

Thomas Jefferson
Every one must act according to the dictates of his own reason, and mine tells me that civil powers alone have been given to the President of the United States, and no authority to direct the religious exercises of his constituents.

Thomas Jefferson
Questions of natural right are triable by their conformity with the moral sense and reason of man.

Thomas Jefferson
Excessive taxation... will carry reason & reflection to every man's door, and particularly in the hour of election.

Thomas Jefferson
Your reason is now mature enough to examine this object [religion]. In the first place divest yourself of all bias in favour of novelty & singularity of opinion. Indulge them in any other subject rather than that of religion. It is too important, & the consequences of error may be too serious. On the other hand shake off all the fears & servile prejudices under which weak minds are servilely crouched. Fix reason firmly in her seat, and call to her tribunal every fact, every opinion. Question with boldness even the existence of a god; because, if there be one, he must more approve the homage of reason, than that of blindfolded fear.

Thomas Jefferson
No experiment can be more interesting than that we are now trying, and which we trust will end in establishing the fact, that man may be governed by reason and truth. Our first object should therefore be, to leave open to him all the avenues to truth. The most effectual hitherto found, is the freedom of the press. It is, therefore, the first shut up by those who fear the investigation of their actions.

Thomas Jefferson
In every country where man is free to think and to speak, difference of opinion will arise from difference of perception, and the imperfection of reason; but these differences, when permitted, as in this happy country, to purify themselves by free discussion, are but as passing clouds overspreading our land transiently, and leaving our horizon more bright and serene.

Thomas Jefferson