fons et origo

The difference only rests on the question whether vitalized or non-vitalized matter is the fons et origo mali.

Genius explains all sublime achievements and genius is, so to speak, its own fons et origo.

Here we were at the topmost source—fons et origo—of our chosen river.

She, after all, was the fons et origo mali to the house of Jehoram.

It is the very fons et origo of our Indo-European ancestors.