The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
"We die. That may be the meaning of life. But we do language. That may be the measure of our lives."
我们会死。那可能是生命的意义。但我们创造语言。那可能是衡量我们生命的标准。
物理学的美丽在于它能够用简单解释复杂。
人工智能的未来取决于无监督学习。
"Courage is not the absence of fear, but the triumph over it."
即使没人相信你，也要相信自己。