Hi folks. I've perused the previous posts concerning this topic and didn't really see a suitable answer, so please excuse me if this is all too familiar. Anyhow, I'm going to have a M.Sc. in Applied Mathematics in May and I'm thinking that being a quant is a great fit for my skill-set and personality; therefore, I think that Carnegie Mellon's mathematical finance Ph.D. program is the best option for me. However, before I make this decision, I have some questions about the work-schedule of a quant. I understand that 10+ hours/day is the norm, and I'm fine with that (I'd work those hours anywhere), but if it's much more than that, I was wondering if firms are flexible in working, say, ten hours at the office and then going home and getting your last two or three hours done at home (after the wife and kids go to bed). I guess I'm just not very comfortable consistently spending twelve hours at the office when there's a family to see. If anyone has any experience with this, or any other helpful advice, I'd be grateful for your sharing. Thanks a lot.