3组 "Then for about eight hours of each working day you will, I hope, be usefully employed. Assume you have gone through pharmacy school — or engineering, or law school, or whatever — during those eight hours you will be using your professional skills. You will see to it that the cyanide stays out of the aspirin, that the bull doesn't jump the fence, or that your client doesn't go to the electric chair as a result of your incompetence.