Abstract:

This work exposes three theses on the concept of idea that, from the “rosmi- nian platonism” of Giuseppe Buroni, can be maintained as genuine from saint Thomas.
The first is that the esse commune has an ideal existence, namely, it exists in the mind of God. The second is that the idea of being is not a mental act or product, but the na- tural object of intelligence; it has its seat in eternity and, from the augustinian–thomist perspective, corresponds to rationes.
The third thesis, more problematic, is the constant distinction between the ideal plane, which corresponds to being, and that of the real, which corresponds to entities.

Key words:

Rosminian platonism, idea, Thomas Aquinas, metaphysics.