The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.
Cloud computing is like electricity, it will become the infrastructure of society in the future.
文学的真正价值在于其揭示人类灵魂的力量。