Previous American comics had flawless heroes like Superman and Flash, but Spider-Man is full of teenage angst – it's as much about how difficult it is to grow up as it is about superpowers or killing baddies.
There is much talk today about the importance of interdisciplinary research, and much bemoaning of how difficult it is to carry it out, especially when the aim is to bridge the gap between basic discovery and translation to the clinic.
It doesn't take much to see how difficult it is in Lebanon today for a Sunni politician to work with Hezbollah, whose fighters are killing Sunnis across the border.
It's only in later years that I realized it, since there's been so much dialogue about how difficult it is to get girls into engineering.
"You cannot begin to imagine how much nothing there was, how difficult it was," says Margaret Atwood, a longstanding friend.
Art experts have suggested that the robbers took advantage of what appeared to be an easy target — a low-security museum — without knowing much about art or how difficult it can be to sell such well-known works.
How much does sympathy cost, how difficult is it to harvest, that no one has any to spare?
The warning came a day after Spain said that its budget deficit last year was much larger than expected, highlighting how difficult it is to cut borrowing and restore economic growth simultaneously.
Take breaks every 15 -30 minutes depending on how much work you have and how difficult it is.
But before spending too much time on thinking about how difficult or time consuming they will be, first break things down a bit.
