我知道自我推销很常见，这并不坏。但我不认为这是积极的。
I know that self-promotion happens a lot and it is not a bad thing. But I do not regard it as something positive.
The construction industry must evolve or risk becoming obsolete.
The mind is not a passive mirror but an active participant in life.
My greatest anxiety arises from the apprehension that I shall not be able to complete the work I have undertaken in the manner I wish.
统计学中最重要的不是数字，而是产生这些数字的方法及其背后的意义。