To achieve great things we must be self-confined...mastery is revealed in limitation.

There is in every man a certain feeling that he has been what he is from all eternity, and by no means become such in time.

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

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

Only he who knows God is truly moral.

...all phenomena are correlated in one absolute and necessary law, from which they can all be deduced.

Nature is visible Spirit; Spirit is invisible Nature.