All this has made me think a lot about the Greek concepts of hubris and humility.

It implies a link between virtus and the Greek concept of arete.

The ancient Greek concept of hubris extended to what would today be termed assault and battery.

The word itself is based on the Greek concept for hospitality.

However, it may also carry connotations of sexuality which were not present in the Greek concept.

That's a Greek concept that is largely alien from the hebrew testament.

The ancient Greek concept of diet had impressed us both.

Kairos is the ancient Greek concept of a propitious time for action.

The modern concept of liberty has its origins in the Greek concepts of freedom and slavery.

That was the original Greek concept of freedom.