It is that time of the year again. I don’t know about you, but I’ve always been the type of guy who devotes quite a lot of time to planning his new year’s resolutions and, at the end of the year – now! – has no idea what they were or whether he’s achieved them. I’m not at all proud of that, but there you have it. Life gets in the way, you know. Too many classes, too many students, too many projects. You start writing a book (again!), you...