积极心理学不是一种奢侈品;它是美好生活的必需品。
I'm just trying to live my life the best way I know how.
量子力学不仅是一种理论,而且是一种新的思维方式。
The night is a great book, but the stars are its letters.
解析:好善恶恶是人之本能。