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The majority of men devote the greater part of their lives to making their remaining years unhappy.

There is not a more unhappy being than a superannuated idol

Let no one till his death be called unhappy. Measure not the work until the day's out and the labour done

One seeks to make the loved one entirely happy, or, if that cannot be, entirely wretched

How unhappy is he who cannot forgive himself

The more refined one is, the more unhappy