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.
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。
Japanese example sentence
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Heads Up These sentences are mainly from the Tanaka Corpus and Tatoeaba project. Read more