所有的暴力都包含一些人强迫另一些人,在痛苦或死亡的威胁下,做他们不想做的事。
The key to success is not just technology, but how you use it to solve real problems.
对知识的追求是无止境的,而这正是它令人兴奋的地方。
"The city’s poor are like the roots of a tree; unseen, but essential to its life."