The city is a living organism, constantly evolving.

The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.

The success of liberal democracy depends on the ability of its institutions to adapt to changing circumstances.

The only time I know that something is true is at the moment I discover it in the act of writing.

科学是照亮世界的火炬。