人生中最难的事情是知道该跨过哪座桥,该烧掉哪座桥。
The hardest thing in life is to know which bridge to cross and which to burn.
孩子独立的智能发展无可限量,它直接依赖孩子心智的力量,而不仅靠导师的工作。
A leader does not deserve the name unless he is willing occasionally to stand alone.