I disagree. We all have many opportunities to say no. You know how much time I spent working on projects that didn't go anywhere and were a complete waste of t

I disagree. We all have many opportunities to say no. You know how much time I spent working on projects that didn't go anywhere and were a complete waste of time and money? (not mine, my employer's). I didn't say no. My manager didn't say no. Their manager didn't say no. You may say that's part of being successful, many things fail but a few stick and make it big. That's true but often the writing is on the wall but people ignore it. One thing I do agree is that not everyone can say no. For example, if you're a software engineer in a big company, you might not have much say. That's why it's important to get yourself into a position where you have more control on the things you work on. Not easy but you don't need to be Buffet to achieve that.