—— 请按键盘 空白键 开始游戏 ——

In mathematics, as in life, the most profound discoveries often come from asking the simplest questions.
【原文】曾子有疾,召门弟子曰:“启予足!启予手!《诗》曰:‘战战兢兢,如临深渊,如履薄冰。’而今而后,吾知免夫!小子。”【译文】曾子得了重病,召集他的弟子们说:“(掀开被子)看看我的脚!看看我的手(有没有毁伤之处)!《诗经》中说:‘小心翼翼,就像站在深渊之旁,就像踩在薄冰之上。’从今以后,我知道(我的身体)再也不会受伤了。弟子们!”
生命中最伟大的荣耀不在于永不跌倒,而在于每次跌倒后都能站起来。
The integration of investment, construction and operation is the future trend of infrastructure development.