And when your stomach is empty and your mind is full,it's always hard to sleep.
The most powerful tools are those that empower others.
No matter how good you get you can always get better, and that's the exciting part.
理解产生于并行工作的简单处理单元的相互作用。
Forests are the lungs of our planet; we must treat them with the care they deserve.
The mind is a system for turning challenges into opportunities.
如果你热爱一件事时，你就会为它克服一切困难。
"The only way to make sense out of change is to plunge into it, move with it, and join the dance."