Man and Sin by Piet Schoonenberg (1964) 2.3 TC
[In scholastic terms, the thinker–container belongs to ens reale (mind-independent realness) even though ‘thinking itself’ goes with ens rationis (mind-dependent realness).
Yet, the mind-independent-ness of the thinker as container is different than what the scholastics understood ‘ens reale’ to be.]