在我们推理关于事实的过程中，有各种可能的确证程度，从最高的确定性到最低级别的道德证据。
In our reasonings concerning matter of fact， there are all imaginable degrees of assurance， from the highest certainty to the lowest species of moral evidence.
Corn is a necessary, silver is only a superfluity.
"The past is not dead ground, and to traverse it is not a sterile exercise."
We live in the best of all possible worlds because it was chosen from all possible worlds.