How do we know ANYTHING about life? Where do our thoughts come from?

The following is an excerpt from a samvaad (dialogue) session with Acharya Prashant.

Questioner: It’s well known that simple living and high thinking is what we should aim at, but how do we know what is simple living and high thinking?

Acharya Prashant: You talked of simple living and high thinking, and you said that it’s…