欣然 | xīn rán | gladly / cheerfully | |
甘之如饴 | gān zhī rú yí | lit. as sweet as syrup (idiom, from Book of Songs) / to endure hardship gladly / a glutton for punishment | |
甘心情愿 | gān xīn qíng yuàn | willingly and gladly (idiom) | |
闻过则喜 | wén guò zé xǐ | to accept criticism gladly (humble expr.) / to be happy when one's errors are pointed out |