Entropy requires no maintenance.

What the thinker thinks, the prover proves.

Philadelphia merely seems dull because it's next to exciting Camden, New Jersey.

The path up is the path down. The way forward is the way back. The universe inside is outside but the universe outside is inside.

The ultimate weapon isn't this plague out in Vegas, or any new super H-bomb. The ultimate weapon has always existed. Every man, every woman, and every child owns it. It's the ability to say No and take the consequences.

People who've been through our educational system, they think they're thinking, when they're just repeating like parrots.

Every nervous system creates its own "reality," minute by minute - we live inside a "bubble" of neural abstractions which we identify with reality. You can make this neurological fact into conscious experience, and you will never be bored or depressed again.