Good effective speech

What makes a good effective speech?
Reasoning , confidence and effort makes an effective speech. I say that because you have to be confident in order to sound good , look good and make the people think that you can take anything. Reasoning is the main thing because you don't just go into a speech talking about something and don't  know why your talking about it. You don't only convince them but also yourself as to why you choose what you chose. And lastly effort. Nothing works unless you try. You can do something for a minute and say it's too hard. It takes time and patience.