As I see it, the big difference between 'softer' (history, literature, philosophy, ...) and 'harder' (math, physics, ...) subjects is that, as an undergrad, you can 'get by' in softer subjects on very little work, especially if you are reasonably intelligent, whereas in harder subjects if you're not working to at least a certain level, you will do really badly.
However, to be a great historian is no less a task that to be a great physicist. Doing anything well is just as difficult as doing anything else well.
However, to be a great historian is no less a task that to be a great physicist. Doing anything well is just as difficult as doing anything else well.