Suffering is an undeniable evil. There are clear moral imperatives to prevent, alleviate and refrain from causing suffering. The depth and breadth of human suffering is incomprehensibly and heartbreakingly vast, and that of animal suffering even more so.
"Belief in this good in the face of suffering is the real basis of faith."
This is something I've come to understand and focus on as well.
"...would not have emerged without ruthless and amoral natural selection."
Also important! Many want to apply all sorts of evolutionary understandings to morality. It is not so!