Not art and science only, but patience will be required for the work.

Oh happy he who still can hope in our day to breathe the truth while plunged in seas of error! What we don't know is really what we need, and what we know is of no use to us whatever!

Progress has not followed a straight ascending line, but a spiral with rhythms of progress and retrogression, of evolution and dissolution.

Few are open to conviction, but the majority of men are open to persuasion

I call architecture frozen music.

None are so hopelessly enslaved, as those who falsely believe they are free. The truth has been kept from the depth of their minds by masters who rule them with lies. They feed them on falsehoods till wrong looks like right in their eyes.

I hate every violent overthrow, because as much is destroyed as is gained by it.