Remorse turns us against ourselves.

The person is always happy who is in the presence of something they cannot know in full. A person as advanced far in the study of morals who has mastered the difference between pride and vanity.

Change of fashion is the tax levied by the industry of the poor on the vanity of the rich.

Society would be a charming affair if we were only interested in one another.

The threat of a neglected cold is for doctors what the threat of purgatory is for priests-a gold mine.

Knowledge is boundless,--human capacity, limited.

In love, everything is true, everything is false; it is the one subject on which one cannot express an absurdity.