The subtleties of mathematics defecate the grossness of our apprehension, and supply the elements of a sounder and severer logic.

The cause of justice is the cause of humanity. Its advocates should overflow with universal good will. We should love this cause, for it conduces to the general happiness of mankind.

Make men wise, and by that very operation you make them free. Civil liberty follows as a consequence of this; no usurped power can stand against the artillery of opinion.

Study with desire is real activity; without desire it is but the semblance and mockery of activity.

It is absurd to expect the inclinations and wishes of two human beings to coincide, through any long period of time. To oblige them to act and live together is to subject them to some inevitable potion of thwarting, bickering, and unhappiness.

Perseverance is an active principle, and cannot continue to operate but under the influence of desire.

Perfectibility is one of the most unequivocal characteristics of the human species.