The greatest threat to our forests isn't logging—it's indifference.

The task of psychology is to map the structure of consciousness.

The oldest， shortest words—'yes' and 'no'—are those which require the most thought.

To be alone is to be different, to be different is to be alone.

History is the memory of a nation.

人的喜怒哀乐的感情没有表现出来，叫做中；表现出来合乎法度，叫做和。达到中和，天地就各居自己的位置，万物也就生长了。