Trade is the best cure for prejudice.

The mood and temper of the public in regard to the treatment of crime and criminals is one of the most unfailing tests of the civilisation of any country.

Honor is unknown in despotic states.

In every government there are three sorts of power: the legislative; the executive in respect to things dependent on the law of nations; and the executive in regard to matters that depend on the civil law.

Friendship is a contract in which we render small services in expectation of big ones.

The spirit of commerce is frugality, economy, moderation, labor, ponderance, tranquillity, order, and rule. So long as this spirit subsides, the riches it produces have no bad effect. The mischief is when excessive wealth destroys the spirit of commerce, then it is that the conveniences of inequality... are felt.

The love of study is in us the only lasting passion. All the others quit us in proportion as this miserable machine which holds them approaches its ruins.