控制的目的是使系统在存在不确定性和干扰的情况下仍能按期望的方式运行。
我们必须倾听科学，并让它指导我们在水产养殖中的决策。
The computer is an interactive medium, the first medium that allows for the representation of processes that can be manipulated by the user.
The key to successful investing is to have a clear strategy.