Humans are as dependent on culture as we are on oxygen; without it, we’re as naked and vulnerable as a crab without a shell. - Steve Stewart-Williams

From a comparative perspective, we are a relatively monomorphic mammal, with relatively monomorphic minds.

Of course, nothing can be said to argue that people are morally obliged to accept this ethic, for to do so would be inconsistent with the ideas that inspired it in the first place. It is an ethic that will be adopted – if at all – by those who find a certain stark beauty in kindness without reward, joy without purpose, and progress without lasting achievement.

[I]t is widely accepted these days that people should be treated fairly and respectfully regardless of whether they buck the trend for their sex, and no ethical theory we’re familiar with implies that this is only the case if the trend in question is 100% environmental in origin.