Certification schemes are the grammar of responsible forestry—they give structure to our good intentions.

The most important property of a program is whether it accomplishes the intention of its user.

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

"Migration is not just a physical journey, but also an emotional and psychological one."

阅非为抵驳亦非舌簧；览不为胡诌而为衡虑。