形容世事变化无常,难以预测。
最好的电影是那些敢于直面我们存在的不舒服真相的电影。
每一次技术的突破,都是对行业的一次革命。
To teach mathematics is to inspire the next generation of thinkers and problem solvers.
The beauty of mathematics only shows itself to more patient followers.
无知不是纯真,而是罪恶。
Every nation is a story it tells about itself.