Speech is our most powerful faculty, either for good or evil, thus it is important that one study the laws of proper speech. This talk discusses evil speech, hurtful speech and courageous speech. Evil speech - lashon hara - is speech that damages a third party. Hurtful Speech - ona'as devarim - is speech that damages the one spoken to. Courageous speech expresses joy and hope in the face of a society that encourages cynicism and negativity.