Louis Sullivan

The architect must be a man of all materials, a man of all tools, a man of all techniques.

The architect must be a man of all spaces, a man of all times, a man of all dimensions.

The architect must be a man of all scales, a man of all proportions, a man of all harmonies.

The architect must be a man of all rhythms, a man of all movements, a man of all dances.

The architect must be a man of all patterns, a man of all textures, a man of all surfaces.

The architect must be a man of all details, a man of all compositions, a man of all ensembles.

The architect must be a man of all parts, a man of all wholes, a man of all universes.

The architect must be a man of all dreams, a man of all realities, a man of all possibilities.

The architect must be a man of all visions, a man of all insights, a man of all revelations.

Form follows function.

Whether it be the sweeping eagle in his flight, or the open apple-blossom, the toiling work-horse, the blithe swan, the branching oak, the winding stream at its base, the drifting clouds, over all the coursing sun, form ever follows function, and this is the law.

The skyscraper is a machine that makes the land pay.

The mother art is architecture. Without an architecture of our own we have no soul of our own civilization.

All architecture is the result of a conscious effort to do something.

The building's identity is organic; it grows from within.

Democracy in architecture is the soul of a free people.

The architect must be a prophet, a poet, a philosopher.

In nature, form and function are one.

The lie is the mother of all evil.

Architecture is the attempt to make order out of chaos.