Nature is visible Spirit; Spirit is invisible Nature.

The fear of speculation, the ostensible rush from the theoretical to the practical, brings about the same shallowness in action that it does in knowledge. It is by studying a strictly theoretical philosophy that we become most acquainted with Ideas, and only Ideas provide action with vigour and ethical meaning.

The failure to invest in civil justice is directly related to the increase in criminal disorder. The more people feel there is injustice the more it becomes part of their psyche.

Since it [architecture] is music in space, as it were a frozen music.

Has creation a final purpose at all, and if so why is it not attained immediately, why does perfection not exist from the very beginning?

All rules for study are summed up in this one: learn only in order to create.

Only he who knows God is truly moral.