To succeed, planning alone is insufficient. One must improvise as well.
15.Do no evil.
The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.
故事的力量在于它能使陌生的事物变得熟悉。
人类最伟大的追求是了解自己必须做什么才能成为一个人。
儿童的一切教育都必须遵循一个原则,即帮助孩子身心自然的发展。