The precepts of philosophy and of the Hebrew code, laid hold of actions only. (Jesus) pushed his scrutinies into the heart of man, erected his tribunal in the regions of his thoughts, and purified the waters at the fountain head.

If [God] has made it a law in the nature of man to pursue his own happiness, He has left him free in the choice of place as well as mode, and we may safely call on the whole body of English jurists to produce the map on which nature has traced for each individual the geographical line which she forbids him to cross in pursuit of happiness.

I fancy it must be the quantity of animal food eaten by the English which renders their character insusceptible to civilization. I suspect it is in their kitchens and not in their churches that the reformation must be worked.

Neither believe nor reject any thing because any other person, or description of persons have rejected or believed it. Your own reason is the only oracle given you by heaven.

I do verily believe that if the principle were to prevail of a common law being in force in the United States (which principle possesses the general government at once of all the powers of the state governments, and reduces us to a single consolidated government), it would become the most corrupt government on the earth.

Every citizen should be a soldier. This was the case with the Greeks and Romans, and must be that of every free state.

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.