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Fool me once, shame on you; fool me twice, shame on me
fool me once, shame on you; fool me twice, shame on me
01
Täuschen Sie mich einmal Schande über Sie; Täusche mich zweimal, Schande über mich
used to imply that it is important to learn from one's mistakes and to be cautious and skeptical when dealing with people or situations that have previously caused harm or disappointment