巧言令色鮮し仁

こうげんれいしょくすくなしじん

those who resort to blandishments and fawning smiles are apt to lack compassion

Also written 巧言令色少なし仁、巧言令色すくなし仁

Meaning

exp
those who resort to blandishments and fawning smiles are apt to lack compassion

Example sentences

巧言令色少なし仁。

Fair words butter no parsnips.
あいつは口ばかりで、誠意がないね。巧言令色少なし仁とはよくいったもんだ。

They say fine words are no virtue if they're insincere and that's him in a nutshell. He's all talk but doesn't mean a word of it.