The act of taking one's own life voluntary and intentionally; self-murder; specifically (Law), the felonious killing of one's self; the deliberate and intentional destruction of one's own life by a person of years of discretion and of sound mind.
If I had no sense of humor, I would long ago have committed suicide. Mahatma Gandhi
Suicide is man's way of telling God, 'You can't fire me - I quit.' Bill Maher
Every man has the right to risk his own life in order to preserve it. Has it ever been said that a man who throws himself out the window to escape from a fire is guilty of suicide? Jean-Jacques Rousseau
So smoking is the perfect way to commit suicide without actually dying. I smoke because it's bad, it's really simple. Damien Hirst
There is no lonelier man in death, except the suicide, than that man who has lived many years with a good wife and then outlived her. If two people love each other there can be no happy end to it. Ernest Hemingway