I have never been able to conceive how any rational being could propose happiness to himself from the exercise of power over others.

The commotions that have taken place in America, as far as they are yet known to me, offer nothing threatening. They are a proof that the people have liberty enough, and I could not wish them less than they have. If the happiness of the mass of the people can be secured at the expense of a little tempest now and then, or even of a little blood, it will be a precious purchase. 'Malo libertatem periculosam quam quietem servitutem.' Let common sense and common honesty have fair play, and they will soon set things to rights.

Specie [gold and silver coin] is the most perfect medium because it will preserve its own level; because, having intrinsic and universal value, it can never die in our hands, and it is the surest resource of reliance in time of war.

A mind always employed is always happy. This is the true secret, the grand recipe, for felicity.

What an augmentation of the field for jobbing, speculating, plundering, office-building and office-hunting would be produced by an assumption of all the state powers into the hands of the general government.

We are afraid of the known and afraid of the unknown. That is our daily life and in that there is no hope, and therefore every form of philosophy, every form of theological concept, is merely an escape from the actual reality of what is. All outward forms of change brought about by wars, revolutions, reformations, laws and ideologies have failed completely to change the basic nature of man and therefore of society.

Speaking one day to Monsieur de Buffon, on the present ardor of chemical inquiry, he affected to consider chemistry but as cookery, and to place the toils of the laboratory on the footing with those of the kitchen. I think it, on the contrary, among the most useful of sciences, and big with future discoveries for the utility and safety of the human race.