The only limits that exist are the ones you place on yourself.

The real opposition is that between the ego-bound man, whose existence is structured by the principle of having, and the free man, whose existence is structured by the principle of being.

The measure of intelligence is the ability to change.

海洋保护不是对业务的限制，而是持久业务的基础。

"The writer's duty is to tell the truth, even when it is uncomfortable."