Whilst weakness and timidity keep us to our duty, virtue has often all the honor.

What often prevents our abandoning ourselves to a single vice is, our having more than one.

Self-love, as it happens to be well or ill conducted, constitutes virtue and vice.

Weakness is more opposed to virtue than is vice.

The virtues and vices are all put in motion by interest.

Hypocrisy is an homage that vice renders to virtue.