Leadership is about making tough decisions today that will benefit future generations.

In the end, we will remember not the words of our enemies, but the silence of our friends.

The first essential component of social justice is adequate food for all mankind.

Nothing is more precious than independence and liberty.

使卵石臻於完美的，并非锤的打击，而是水的且歌且舞。

解释：在人活动范围内的水就污浊，在野外无人地方的水就清洁。同为一样的水，都是从天边开源，有的混浊有的清洁，这是它们所处环境使它们这样的。

Every blessing ignored becomes a curse.