A building should be a good neighbor.
教师是太阳，学生是月亮。教师发光，学生反射。
Don’t take it personally when someone turns you down. Assume they are like you: busy， occupied， distracted. Try again later. It’s amazing how often a second try works.
眼睛不仅仅是光学仪器；它是心灵感知外部世界的手段。