Earlier quoted context omitted.
To convince yourself of the opposite of one fact you are suggesting -- that endocrine system doesn't play a major role in behavior, try administering yourself testosterone shots (ok don't actually do it (!) this is just for the argument's sake). You'll notice how you'll start feeling more agressive. You might start behaving more aggressively. If you stop after a while you might look back and even say something like "…
Who's to say that you are acting aggressively simply because of having more testosterone. Perhaps it's having more testosterone in relation to what you're used to? Sure, testosterone is a factor, and it may have contributed to the trend of men to be more aggressive than women, however, women have demonstrated that they can be just as aggressive if not more aggressive with far less testosterone than men. To say we sho…
Sorry for misunderstanding. I wasn't saying that, just highlighting that biological makeup, specifically the endocrine system, can affect behavior quite bit. It should not be used as an excuse but it should be acknowledged as well. Small tendences when averaged over a lifetime can create quite different outcomes in the end. Think of a stream that slowly etches a rock and we end up with the Grand Canyon in the end.
So just to repeat again, I am not for sending all girls to home-ec classes and prep only boys for engineering and science, just showing that biological differences are there and they can affect behavior, perception & learning in significant way. Ignoring those factors, might end up being detrimental in the long run.