Pendulum

I can not undo
What I can't do

I can't take the life from the living
For I can't give life to the dead

I can't cause sickness to the healthy
For I can't cure the diseased ones

Laws of life
Hide in antithesis
Of what you can do
And what you can't do

Pendulum of decision
Pendulum of life
All you need precision
All you loose is time