The historian’s task is to understand the past, the novelist’s to make it live.
The healthy social life is found when in the mirror of each human soul the whole community finds its reflection, and when in the community the virtue of each one is living.
化学不仅描述世界，它还改变世界。
如果你不相信自己，就没有人会相信你。
The universe is a machine governed by mathematical laws.
合理的战略始于树立正确的目标。