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In my early professional years I was asking the question: How can I treat, or cure, or change this person? Now I would phrase the question in this way: How can I provide a relationship which this person may use for his own personal growth?

解釋：曲子高妙，不是人人都能和唱；說出真相，不是人人都能相信。

What seems to us as bitter trials are often blessings in disguise.

"The secret to writing for children is remembering what it felt like to be a child."

數學不知道種族或地理界限；對于數學來說，文化世界是一個國家。