Intersection of wishes

Well it might appear a bit mathematical. But the analysis is worth giving a thought.
People live because they are driven by the spirit of fulfilling what they want to achieve.
These spirits are in other words the wishes.

There are many aspects and there are as many things we wish for. Say you want to drink some soft drink. But you don't want to leave any possibility for catching common cold. In this case isn't it clear that the intersection of both the wishes is null?

Till one has a strong will to confront challenges and handle those efficiently the intersection set is almost null. The generalisation of this condition is the popular saying in hindi, translated as " To achieve something one has to sacrifice some other thing!"
But is it always true? Well don't get confused. The idea is to make people think. How to be happy and content with one's life is important and so one has to know the apposite ways to make it that way.

So people , if you know mathematics well and good. I have conveyed my thought. And if u don't, then..... just be happy!