Never stop asking, “How can we do this better?”
历史不仅仅是发生了什么，还包括人们对此的想法和感受。
As to the gods, I do not know whether they exist or not, or what they are like.
The goal is not to be right all the time, but to be right more often than wrong.
The personality of the teacher is the cornerstone of education.
Success is not final, failure is not fatal: it is the courage to continue that counts.