The difference between good and great is the extra effort.

The speech we hear is an indication of that which we don't hear. It is a necessary avoidance, a violent, sly, anguished or mocking smokescreen which keeps the other in its place.

A book can be a friend, a teacher, and a doorway to another world.

如果你做了一次，人们会称之为意外。如果你做了两次，他们会称之为巧合。但如果你做了三次，你就证明了一个自然法则。

互联网不仅仅是一种技术，它是一种社会现象。

美国以其广阔的能力，能够在其境内容纳地球上所有的人口。