The greatest obstacle to progress is not ignorance, but the illusion of knowledge.

"The most dangerous prisons are those we build in our minds."

Silence is the perfectest herald of joy.

A journey is a person in itself; no two are alike. And all plans, safeguards, policing, and coercion are fruitless. We find after years of struggle that we do not take a trip; a trip takes us.

环境就是除我之外的一切。