"The immune system is like a double-edged sword; it can fight cancer but also needs to be controlled."
The knowledge that you have emerged wiser and stronger from setbacks means that you are, ever after, secure in your ability to survive. You will never truly know yourself, or the strength of your relationships, until both have been tested by adversity. Such knowledge is a true gift, for all that it is painfully won, and it has been worth more than any qualification I ever earned.
如果不能满足真正农民的需求,最先进的技术也毫无价值。