The writer must be a person who is willing to fail.
Go for a business that any idiot can run – because sooner or later, any idiot probably is going to run it.
简单的事情应该简单，复杂的事情应该可能。
I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.