如今网络上到处都是免费的教育资源,真正稀缺的是对学习的渴望。
Never underestimate the power of a well-designed experiment.
Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen.
The most advanced technology is worthless if farmers can't use it effectively.
I'm a survivor. I'm not gonna give up. I'm not gonna stop. I'm gonna work harder.