Please just read Newton!

It was easy when I only had the public and university library.

Ever heard of Google?

So easy now.

Why post when you have no idea? (That said for all who do not have a clue.)

Look up his critique on how we construct our ideas about the universe out of our own minds.

Look up how Hume said (something like), "Our entire idea of a 'sustance' is formed from our 'passions and emotions'.

Look up how Kant was transformed by reading Hume.