Is self-preservation a moral imperative or just a fact? Are there situations in which self-preservation is not the highest value? Is it selfish to prefer (saving) one's own life to that of others? From an evolutionary standpoint, is "survival of the fittest" selfish or selfless?

Is "enlightened self-interest" a contradiction in terms, or is it really the basis for all action?

Egoism and Friendship. Do you have any friends or acquaintances who act like ethical egoists? Does this present any special problems or issues in your relationship with them? Can an ethical egoist be a good friend? Why or why not?