Reason and free inquiry are the only effective agents against error. Give a loose to them, they will support the true religion by bringing every false one to their tribunal, to the test of their investigation. They are the natural enemies of error and error only. Had not the Roman government permitted free inquiry, Christianity could never have been introduced. Had not free inquiry been indulged at the era of the Reformation, the corruption of Christianity could not have been purged away.
Thomas Jefferson[T]he true key for the construction of everything doubtful in a law is the intention of the law-makers. This is most safely gathered from the words, but may be sought also in extraneous circumstances provided they do not contradict the express words of the law.
Thomas JeffersonConsidering the great importance to the public liberty of the freedom of the press, and the difficulty of submitting it to very precise rules, the laws have thought it less mischievous to give greater scope to its freedom than to the restraint of it.
Thomas JeffersonSIR,-Your letter of February the 18th came to hand on the 1st instant; and the request of the history of my physical habits would have puzzled me not a little, had it not been for the model with which you accompanied it, of Doctor Rush's answer to a similar inquiry. I live so much like other people, that I might refer to ordinary life as a history of my own. Like my friend the Doctor, I have lived temperately, eating very little animal food, and that not as an aliment, so much as a condiment for the vegetables, which constitute my principle diet.
Thomas JeffersonIt be urged that the wild and uncultivated tree, hitherto yielding sour and bitter fruit only, can never be made to yield better; yet we know that the grafting art implants a new tree on the savage stock, producing what is most estimable in kind and degree. Education, in like manner, engrafts a new man on the native stock, and improves what in his nature was vicious and perverse into qualities of virtue and social worth.
Thomas Jefferson