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The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

當我開始時，我對建筑的第一想法來自材料。

At every crossroads on the path that leads to the future, tradition has placed 10,000 men to guard the past.

設定新目標或做新夢想永遠不會太老。

Technological innovation is the fundamental way to solve the problems of the coal industry.