the wise man always thinks before he speaks and he never opens his mouth before first evaluating and contemplating about his words, but the unwise and ignorant person is just the opposite and he always speaks without thinking and evaluating his words first and his personality is hidden under his words. In other word, the wise person first thinks then speaks, but the ignorant person is not like this; he first speaks then thinks and regrets and broods about why he said that and he hurt someone's feelings by what he said.
source : erfan.ir
