The close and thoughtful observer more and more learns to recognize his limitations. He realizes that with the steady growth of knowledge more and more new problems keep on emerging.

Waste not a day in vain digression; with resolute, courageous trust seek every possible impression and make it firmly your posession you'll then work on because you must.

The highest happiness, the purest joys of life, wear out at last.

Architecture is crystallized music.

He who possesses art and science has religion; he who does not possess them, needs religion.

All intelligent thoughts have already been thought; what is necessary is only to try to think them again.

No one as ever completed their apprenticeship.