Suicide is a waste of life.
How is it a waste?
All the ideas and potential of an idividual are thrown away.
Well, you could also argue that you are saving the world from a possible terrorist.
Most people don't end up as terrorists. Besides, life is precious.
It was given to us by God; He didn't have to do it, you know.
That's just what a suicidal person wants. And I don't believe in a creator, so why should life be precious to me?
Wouldn't you be sad if everyone you knew murdered themselves?
Yes, unbearably so. But that doesn't make life sacred.