The greatest happiness of a teacher is to send groups of children to the other shore of their ideals.
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
一个革命者可以失去一切:家庭、自由,甚至生命。但有一件事他永远不能失去:荣誉。
The most important single aspect of software development is to be clear about what you are trying to build.