Poetry is not a luxury, but a necessity.

"To create is to defy the inevitable."

儿童对活动的需要几乎比食物的需要更为强烈。

The search for reciprocity laws is a fundamental theme in the history of mathematics.

以这样奢侈的国君,去统治那些爱好奢侈的臣民,想要国家不动乱,是不可能的。