being at a loss 亡羊の嘆き
Please check it out! http://bit.ly/1rvQ65W bemoaning the frustration of reaching truth for surplus of academic paths. Japanese calls Bou-Yo-No-Tan.
one's word is worth 1,000 pieces of gold 一諾千金
Please check it out! http://bit.ly/1tkAlAE a promise should be kept at all cost.
Japanese calls Ichi-Daku-Sen-Kin.