The greatest inventions are those which most directly meet the wants of mankind.
社会系统是个人之间以及群体之间关系的系统。
No testimony is sufficient to establish a miracle unless the testimony be of such a kind that its falsehood would be more miraculous than the fact which it endeavors to establish.
人们改变了,却忘了告诉对方。
我宁愿与众不同也不愿平凡无奇。