语言学习应该是一段快乐的旅程,而不是一项乏味的任务。
关于神,我无法知道他们是否存在,也无法知道他们是什么样子的。许多事情阻碍了知识,包括主题的晦涩和人类生命的短暂。
The problem of the modern individual is not that he has too little choice, but that he has too much.
Attosecond science allows us to capture the fastest motions in the microcosm, like freezing the wingbeat of a hummingbird.