I always try to be positive and optimistic in life.
我总是努力在生活中保持积极和乐观。
Never give up, never give in.
If you can't explain your chemistry to a non-scientist, you don't understand it well enough.
——2006年6月15日,盖茨在宣布将退出微软日常管理工作新闻发布会上的发言
The study of life is the study of endless possibilities.