国家不是一个慈善机构;它是一个强制组织。
The first step is to establish that something is possible; then probability will occur.
Gratitude is an antidote to negative emotions, a neutralizer of envy, hostility, worry, and irritation.
建筑是人类事件的固定舞台。
数学中最令人兴奋的时刻是当你发现一些隐藏在显而易见之处的东西。