He who has no passion has no principal or motive to act.

Pleasure and pain are the only springs of action in man, and always will be.

The men of sense, the idols of the shallow, are very inferior to the men of passions. It is the strong passions which, rescuing us from sloth, impart to us that continuous and earnest attention necessary to great intellectual efforts.

He who has no passion has no principal or motive to act.

To limit the press is to insult a nation; to prohibit reading of certain books is to declare the inhabitants to be either fools or slaves: such a prohibition ought to fill them with disdain.

Must we, under the happy hope of a false tranquility, sacrifice to the people in power the public welfare, and under vain pretence of preserving the peace, abandon the empire to robbers who would plunder it

When a miser contents himself with giving nothing, and saving what he has got, and is in other respects guilty of no injustice, he is, perhaps, of all bad men the least injurious to society; the evil he does is properly nothing more than the omission of the good he might do. If, of all the vices, avarice is the most generally detested, it is the effect of an avidity common to all men; it is because men hate those from whom they can expect nothing. The greedy misers rail at sordid misers.