Full Idea
When following conscience means doing as one's 'internal voice' prompts one to do, to follow one's conscience it so abdicate one's responsibility as a rational agent.
Gist of Idea
Following an inner voice for morality is irresponsible in a rational agent
Source
Peter Singer (Practical Ethics [1979], 09)
Book Reference
Singer,Peter: 'Practical Ethics' [CUP 1989], p.185
A Reaction
Seems dead right. An inner voice is far more likely to be your culture and upbringing than to be an absolute moral truth. It may not be entirely wrong, though, to behave as your culture requires.