Lincoln was once associate counsel for a defendant in a murder case. He listened to the testimony given by witness after witness against his client, until his honest heart could stand it no longer; then, turning to his associate, he said: "The man is guilty; you defend him--I can't," and when his associate secured a verdict of acquittal, Lincoln refused to share the fee to the extent of one cent.
Lincoln would never advise clients to enter into unwise or unjust lawsuits, always preferring to refuse a retainer rather than be a party to a case which did not commend itself to his sense of justice.