至今一切社会的历史都是阶级斗争的历史，即剥削阶级和被剥削阶级之间、统治阶级和被压迫阶级之间斗争的历史。
科学是一段旅程，每一步都很重要。
理解就是感知模式。
A hundred times every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving...
追求数学真理是一场永无止境的冒险。
The world is full of magic things, patiently waiting for our senses to grow sharper.
音乐是全人类的通用语言。