God is the absolute good and, therefore, cannot be the author of evil. I'm sure you must agree with that.
We cannot as creatures question, ask for a reason, why God created us. Again I'm sure you must agree with that.
We must therefore agree with St Thomas that the will can only desire what is good for us. That does not mean that every act of will is going to be good but only what we perceive is going to be good for us. Thus thieving is good for us insofar that it makes us 'better' off. It is not, however, good for us because it places our souls in peril. In the same way suicide may be regarded as good because it may relieve us of pain, suffering, various situations in life which we can't face, etc, yet it is akin to murder even though the victim and perpetrator are one and the same. Thou shalt not kill, applies to killing oneself as much as it does to killing another.
Death is a consequence of the Fall, why else would Our Lady, conceived without sin, be assumed into heaven.

Labels: moderation: safe