城市的穷人就像树的根:看不见,但对生存至关重要。
每一个失败的实验都是迈向成功的一步,只要你从中学习。
未来汽车的价值,软件将占40%以上。
We can easily forgive a child who is afraid of the dark;the real tragedy of life is when men are afraid of the light.
Sometimes the questions are complicated and the answers are simple.