What can science prove?

[LukeMC]

There is only assumption when it comes to what we know... what else would our knowledge be based on? We could certainly know things to be true... but that doesn't mean we're 'right' in our knowledge.

Your comment calls for a re-assessment of what it means to "know" something. In the strictest sense, I suppose we don't "know" anything, and our "knowledge" is merely our "database of commonly held beliefs which may be wrong". In which case, we only suppose that we certainly know things to be true, and indeed may not be right in our so-called "knowledge" as you say.

This philosophy business is quite taxing on the brain