Program testing can be used to show the presence of bugs, but never to show their absence!
The study of mathematics is like air or gravity – it’s everywhere, even if you don’t see it.
To write is to resist, to fight against the forces that seek to silence us, to assert our humanity in the face of dehumanization.
不要贪婪，也不要孤立。
"The beauty of science lies in its ability to transform the abstract into the tangible."