—— 请按键盘 空白键 开始游戏 ——

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
Learning is not a passive process; it involves the active construction of knowledge.
当我们无法改变一种情况时,我们被挑战去改变自己。
可持续性不是成本,而是对我们共同未来的投资。