I don't think it's always bad, but I would always rather have truth, no matter how ugly. This probably contributes to the level and constancy of my depression - I favour harsh truth over comfort at all times, and will not allow myself to believe something just because I would prefer it unless I can satisfy myself that it is indeed true.

I feel very strongly about this. I've never been able to self-deceive, possibly as a function of my autism, and I don't understand how anyone can.