The smart way to keep people passive and obedient is to strictly limit the spectrum of acceptable opinion, but allow very lively debate within that spectrum.

La lectura es un diálogo silencioso entre el autor y el lector.

记忆是一个充满版本的档案，而不是绝对真理。

Risk management is an important part of strategic management.

唯一干扰我学习的是我的教育。