可持续性不是一种选择，而是我们对下一代的责任。

真正的教师会保护学生免受他个人影响。他激发自我怀疑。他将他们的目光从自己身上引导到激发他的精神上。他不会有门徒。

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

Man is so naturally good that when he does evil it is against his will.

尊重孩子的发展自由，包括帮助孩子培养发展的能力。

I don’t need too much. Glamour and all that stuff don’t excite me. I’m just glad I have the ability to make a difference.

谷物种植的成功不仅仅以蒲式耳衡量，还要看我们土壤的健康状况。