Confidence isn't optimism or pessimism, and it's not a character attribute. It's the expectation of a positive outcome.
世界是一面镜子，我们在其中看到我们自己。
Good and great are seldom in the same man.
"The beauty of computational complexity lies in its ability to classify problems based on their inherent difficulty."
Never, never and never again shall it be that this beautiful land will again experience the oppression of one by another and suffer the indignity of being the skunk of the world.Let freedom reign!