Where affluence is the rule, the true threat is the loss of desire,(...) What is new is not that prosperity depends on stimulating demand. It is that it cannot continue without inventing new vices

Changing prejudice often inverts the value of words while preserving most of their sense; virtues are turned into vices, artistic qualities become defects.

This catch-22 happens a lot to men. A man can sense that a woman wants to know if he loves her. He doesn't want to share those feelings because, if he does, she will expect him to marry her and be greatly hurt if he doesn't. In romantic movies, loving someone meant that you wanted to marry her. In real life, it is not always the case.

To a philosophic eye, the vices of the clergy are far less dangerous than their virtues.

Search others for their virtues, thyself for thy vices.

Think no vice so small that you may commit it, and no virtue so small that you may over look it.