Freedom does not consist in any dreamt-of independence from natural laws, but in the knowledge of these laws, and in the possibility this gives of systematically making them work towards definite ends.

能消除将要发生的事，遇到事情而能做弥补，事情发生后能挽救，这叫做达权，有才干。知道将来的事，做事有始有终，已成的事能知其中的变化，这叫做深思熟虑、有见识。

我们不拥有记忆；记忆拥有我们。