—— 请按键盘 空白键 开始游戏 ——

有时候,解决问题的最好方法就是完全避开它。
"In observational studies, we often have to rely on assumptions that are not directly testable."
成功不在于你赚了多少钱,而在于你对人们生活的影响。
"Writing is a way to make sense of our dreams."