写作是一种自由的行为，但也是一种责任。
The only limit to our realization of tomorrow will be our doubts of today.
Leadership is about making tough decisions with both courage and compassion.
"The wise man learns more from his enemies than the fool from his friends."
The beauty of physics lies in its ability to reveal the profound simplicity underlying the apparent complexity of the universe.
实现明天的唯一限制是我们今天的疑虑。
Sometimes, the only way to stay sane is to go a little crazy.