Don't interfere with anything in the Constitution. That must be maintained, for it is the only safeguard of our liberties. And not to Democrats alone do I make this appeal, but to all who love these great and true principles.

The writer must be a person who is willing to be alone.

爱不仅是一种情感，它也是一门艺术。

Leadership is about making others better as a result of your presence, and making sure that impact lasts in your absence.

Success is not about the money or fame, it's about the impact you have on others.

在没有其他信息的情况下，参数的最佳估计是其样本值。