原文英文：The most merciful thing in the world， I think， is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity， and it was not meant that we should voyage far.
The past is a kind of shadow which is always there, whether you choose to ignore it or not.
书籍是不同世界之间的桥梁。
无论你注定要做什么，现在就做。条件总是不可能的。
We are all haunted by the ghosts of our own making.
Coal isn't the problem - how we use it is. The solution lies in cleaner technologies and better utilization.
The only secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards.