【题记】泰山不拘细壤,故能成其高;江海不择细流,故能就其深。叶澜教授指出:“课堂应是向未来方向挺进的旅程,随时都可能发现意外的通道和美丽的风景,而不是一切都必须遵循固定线路而没有激情的行程。 【Inscription】 Taishan soil, so can be its high; Jianghai choose trickle, it can be deep. Professor Ye Lan pointed out: ”Classroom should be a journey to the future direction, at any time may find unexpected passageway and beautiful scenery, but not everything must follow the fixed route without passion trip.