Every mental state is a link in the chain of consciousness.

〈三民主义大旨〉，在广州中国国民党本部特设办事处成立会的演说，1921年3月6日

"We are all in the gutter, but some of us are looking at the stars."

The laws of physics produce complex structures, and in at least one case, a complex structure produces the laws of physics.

The more we learn about black holes, the more we realize how much we still don’t know.