Atheism and Ethics

[Sheldon]

Nothing objectively, though it is my subjective opinion that causing unnecessary suffering, or not doing what we can reasonably be expected to, to prevent it, is immoral. It is not objectively true that causing unnecessary suffering is wrong, at least as far as I can see, though as always I shall keep an open mind.

Do you not care whether or not the things you believe are true?

Actually I do very much, which was why I was careful to label it a subjective opinion, one can prefer red to blue, but one can't pretend that red is objectively better than blue, just because they prefer it, no more can I pretend it is objectively true that we should not cause unnecessary suffering, and should do what is reasonable to prevent it where possible. 

I can only infer how I would feel, indeed how I have felt on occasion, when others caused me to suffer unnecessarily, and that I would prefer to live in a society, and a world where we don't cause, and try to prevent unnecessary suffering.