一个人可以选择退回安全地带或迈向成长。成长必须一次又一次地选择;恐惧必须一次又一次地克服。
One can choose to go back toward safety or forward toward growth. Growth must be chosen again and again; fear must be overcome again and again.
Diversity of thought isn't just good ethics; it's good business strategy for complex energy challenges.
给定系统中的酸和碱不是绝对的,而是相互关联的。