一个术语的非道德用法不一定告诉我们这个术语的含义。

You can't change the past, but you can ruin the present by worrying about the future.

人生的每一门课程会随时间依次呈现给你。掌握所需的一切能力取决于你的内心。一旦你真正掌握了一门课的精髓，你自然就会进入下一门课。只要你还活着，你就仍然有课要学。

The best thing a human being can do is to help another human being know more.

沉默在音乐中非常重要。