电影制作是一种协作艺术，但导演必须是引导力量。
Filmmaking is a collaborative art, but the director must be the guiding force.
国际体系的无政府性质迫使国家争夺权力。
心理学应帮助我们理解如何应对生活的挑战。
狗是人类的朋友，因为它看人不分贵贱。
Only by continuous learning can we make continuous progress.
It is on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.