To write is to confront the ghosts of our past, to give them a voice, and perhaps, to set them free.
写作就是面对我们过去的幽灵，给它们一个声音，也许，让它们自由。
给定系统中的酸和碱不是绝对的，而是相互关联的。
"We're going on a bear hunt. We're going to catch a big one. What a beautiful day! We're not scared."
In chemistry, as in life, the most transformative reactions often occur at the boundaries between disciplines.