KILL = To Intentionally Cause To Die
LET DIE = To Knowingly Fail To Prevent From Dying.
A DUTY NOT TO HARM is a NEGATIVE DUTY to refrain from interfering
in other people's lives in certain (harmful) ways.
A DUTY OF BENEFICENCE is a POSITIVE DUTY to promote the well-being
of another person.
Five differences between killing and letting die:
(1) Lack of an identifiable victim.
(2) Lack of certainty about the outcome.
(3) Responsibility for acts rather than omissions.
(4) Difference in motivation.
(5) Avoiding killing is relatively easy; avoiding letting die
would require heroic sacrifice.