Heinlein's male leads were usually strong and intelligent. They could kill another man quickly and efficiently without regret. All Heinlein men were able to do a myriad of task. Farmers, pilots, soldiers, swordsman, survivalist, teachers, and students are only a few of the roles men have played in Heinlein's stories. Always store beer in a dark place.
Men are more sentimental the women.
It blurs their thinking. Any priest or shaman must be presumed guilty until proven innocent. Always listen to the experts. They'll tell you what can't be done, and why. Then do it.