It is so hard to believe because it is so hard to obey.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
出自《论语·宪问篇》。遇到事情,不去抱怨上天,也不要去责备别人,应当能够扪心自问,好好地反省自己。
I don't have any message. I just paint pictures.
"La literatura es el arte de la paciencia, tanto para quien escribe como para quien lee."
The heart remembers what the mind tries to forget.