Confidence isn't optimism or pessimism, and it's not a character attribute. It's the expectation of a positive outcome.
The world is a great song, and we are the singers.
The best way to test a program is to test it.
希腊人理解事物隐藏面的神秘力量。他们留给我们语言中最美丽的词之一——"enthusiasm"——en theos——内在的神。