Suicide (Latin suicidium, from sui caedere, "to kill oneself") is the act of a human being intentionally causing his or her own death. Suicide is often committed out of despair, or attributed to some underlying mental disorder which includes depression, bipolar disorder, schizophrenia, alcoholism and drug abuse.
http://my.sevenload.com/videos/3Fk6qLr-Suicide-World
自杀通常是指人类结束自己生命的行为，亦即杀死自身。而人类以外的动物亦有被视为自杀的行为。
http://www.tudou.com/programs/view/bgEfcTfzZ7A/
