All human knowledge is from experience.
"The Internet is becoming the town square for the global village of tomorrow."
"I write to escape the game, but I always end up finding it."
保持孩子健康的最佳方式是让他们保持活跃并均衡饮食。
复杂性理论告诉我们,并非所有问题都是平等的;有些问题本质上比其他问题更难。