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。
A good system design is one that makes it easy to do the right thing and hard to do the wrong thing.
一个好的系统设计是使做正确的事情变得容易，做错误的事情变得困难。
The historical sense involves a perception, not only of the pastness of the past, but of its presence.
技术应该为农民服务，而不是让他们的工作复杂化。