Profitability and responsibility must go hand in hand.
I don’t think you should spend much time being unhappy about the bad breaks. You get a lot of them, but you also get a lot of good ones. The thing to do is just to maximize your odds of using the good ones and minimizing the effects of the bad ones.
人生幸福的三大要素是：有事可做，有人可爱，有希望可期待。
The essence of computer science is the study of algorithms and their efficiency.