言为心声 meaning in Chinese

words are the voice of the mind.; language is the dress of thought.; one's words are reflection of one's thinking.; speech is the voice of the soul.; what the heart thinks the tongue speaks.; when the heart is afire, some sparks will fly out at the mouth.; words are symbol of thought 短语和例子
人的心理真是奇妙，言为心声一点不假。 a person's psychology is a subtle thing. how true it is that words are echoes of the heart