"Parental investment is the key to understanding the origins of sex differences."
预测未来的最佳方式就是去创造它。
The act of writing is an act of survival.
"The future is not something we enter. The future is something we create."
系统辨识的挑战不仅在于拟合数据,还在于提取有意义且可推广的模型。