The right of a nation to kill a tyrant in case of necessity can never be doubted.
学习本质上是刺激-反应连接的问题。
预测未来的最好方法就是实现它。
The first of April is the day we remember what we are the other 364 days of the year.
We are all wanderers on this earth. Our hearts are full of wonder, and our souls are deep with dreams.