By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest.
— Confucius

The bitterest tears shed over graves are for words left unsaid and deeds left undone.
Harriet Beecher Stowe bitterest quote

An ingenuous mind feels in unmerited praise the bitterest reproof.
— Walter Savage Landor

To dare to live alone is the rarest courage; since there are many who had rather meet their bitterest enemy in the field, than their own hearts in their closet.
— Charles Caleb Colton

The bitterest creature under heaven is the wife who discovers that her husband's bravery is only bravado, that his strength is only a uniform, that his power is but a gun in the hands of a fool.
— bitterest quotation by Pearl Buck