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.

To understand the mind, we must first understand its evolutionary purpose.

"The power of words is that they can create worlds that never existed."

公司的力量在于团队的团结。

过去并未死去，它甚至还未过去。

帮助别人，做善事，最令我愉悦；认真读书，重修养，最为人赞许。