i say yes or no

He didn't say, "Of course I will do this," or even a simple "Yes," because such confirmation would have meant that there was an option to refuse, and no such thing existed between them.

他没有说“当然，我会这么做”，甚至也没有简单地说“好的，”因为这样的口头确认意味着还有拒绝的可能，而这种事情在他们之间是不可能发生的。

Perhaps we think "I took on too much" is not much of an excuse if and when we drop the ball (after all, it was our choice to say yes or no).

也许我们认为，如果或当我们犯错误的时候，“我承担过多”并不是一个好借口(毕竟，是我们选择说“是”或“不”)。

Remember, every time we say yes to something, we must necessarily say no to something else, whether we want to or not. I guarantee it.

我保证，每次你答应别人什么事的时候，就意味着，无论你愿不愿意，你必须拒绝另一件事。