For the family to live as their grandfathers and fathers had been accustomed to live, that is at the same educational level, and so to bring up their children, was undoubtedly necessary.
Жить семье так, как привыкли жить отцы и деды, то есть в тех же условиях образования и в тех же воспитывать детей, было, несомненно, нужно.