"The key to innovation is diversity of thought."
Don't give up easily, because you never know what will happen in the next second.
【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!”
The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.
市场总是对的,价格永远不会高到不能买或低到不能卖。
凡是大国之所以不攻打小国的,必定是由于这个小国粮食充足,城郭修筑坚固,上下和谐一心。