Coal’s future depends on our ability to make it cleaner and more efficient.
煤炭的未来取决于我们能否使其更清洁、更高效。
The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all.
The challenge of modern cryptography is not just to protect information, but to do so in a way that is both efficient and scalable.