言必信，行必果

yánbìxìn,xíngbìguǒ

insist on keeping one's word and seeing one's actions through to the end; always stand by one's word, and undertake nothing that one does not bring to achievement

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言必信，行必果|言必信，行必果 [yán bì xìn , xíng bì guǒ] ► one must be a man of his word and resolute in his work (proverb)