A single legislature, on account of the superabundance of its power, and the uncontrolled rabidity of its execution, becomes as dangerous to the principles of liberty as that of a despotic monarch.

The mere man of pleasure is miserable in old age, and the mere drudge in business is but little better, whereas, natural philosophy, mathematical and mechanical science, are a continual source of tranquil pleasure, and in spite of the gloomy dogmas of priests and of superstition, the study of these things is the true theology; it teaches man to know and admire the Creator, for the principles of science are in the creation, and are unchangeable and of divine origin.

Priests and conjurors are of the same trade.

Public money ought to be touched with the most scrupulous conscientiousness of honor. It is not the produce of riches only, but of the hard earnings of labor and poverty. It is drawn even from the bitterness of want and misery. Not a beggar passes, or perishes in the streets, whose mite is not in that mass.

Science is the true theology.

The danger to which the success of revolutions is most exposed, is that of attempting them before the principles on which they proceed, and the advantages to result from them, are sufficiently seen and understood.

If, to expose the fraud and imposition of monarchy . . . to promote universal peace, civilization, and commerce, and to break the chains of political superstition, and raise degraded man to his proper rank; if these things be libellous . . . let the name of libeller be engraved on my tomb