As historians are quick to point out, the parallels between modern times and the classical world – including not only Greece, but also Rome – are plentiful. No new thinking here. In profound ways, our modern society, laws, forms of government and language are embedded in the classic traditions. But there’s more to the story than that.
The history of philosophy, more broadly framed as the history ideas, tells a compelling story about a journey to new levels of understanding – a tale that traces evolution of ‘critical thinking’ itself.
At its core, philosophy is about learning how we ‘know’ what we know, and learning what we can do with the knowledge that can be gained. Critical thinking and philosophy seem to share a common heritage, as shown in this table:
Learning Research Methods 
Thank-you George. I needed a brush-up and your in-depth knowledge of philosophy right now.