Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

Thinking consists in envisaging, realizing structural features and structural requirements.

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

释义：杜绝不良嗜好，禁止过度欲望，从而摆脱牵累；抑制错误行为，减少邪恶之事，从而消除过错；减少饮酒，远离美色，从而保持自身清白。这是对修身养性、克制欲望的教导。 

财产权确实是人类的一项权利，与自由一样真实。