Courage is often lack of insight, whereas cowardice in many cases is based on good information.

It is better by noble boldness to run the risk of being subject to half of the evils we anticipate than to remain in cowardly listlessness for fear of what might happen.

You're gutless. It's how you were made. And that's not such a bad thing because your saving grace is that you've never lied to yourself about it. Not about that. Nothing wrong with cowardice as long as it comes with prudence. But when a coward stops remembering who he is... God help him.

cowardice with courage.

Life is too short to cower.

Whereas, generally speaking, zinc reacts suitably only with the first members of the alkyl iodides, with magnesium it is possible to use bromides, iodides, and in many cases, chlorides.