We are human beings. We have a very exceptional part which diffentiates us from other animals and it is our brain. We can think about anything by using our own brain.
So, the question is how we should think ?
Everyone think in different ways. Suppose, we want to solve a math. So the question comes how we can solve the math. If you gather 10 students and tell each of them to solve the problem, then they will give you different solutions. But would they give diffenrent solutions ? why won't they give same solution? because they think in different ways.
A person should think in his own way. Because if you are following someone and you think like him , then how will you invent something that will be different from him? So,you should think like you. And then you can invent something.
But before thinking about something , you need to know about that thing. And to do so, you should ask yourself why.