The true cost of coal must account for both its immediate value and its long-term impact on communities and ecosystems.

The essence of cryptography is to allow communication in the presence of adversaries.

长期来看，只有真正创造价值的人才能生存。

It’s not the events of our lives that shape us, but our beliefs as to what those events mean.

你们会掩饰错误，还是会坦诚道歉？