- Instead, it permitted the complete remodelling of the native institution by the interpenetration of Italian influences. - "The Romanization of Roman Britain", F. Haverfield.
- Products of electro- magnetic currents and born of the interpenetration of such streams flowing above us? - "The Metal Monster", A. Merritt.
- There is an organic interpenetration of the sensuous and the spiritual; and it is by virtue of this interpenetration that the human reason can go out into the external world and find itself there. - "Nature Mysticism", J. Edward Mercer.