体悟虚无之道的功力有深浅之分,功力深则能兼顾形体,功力浅则仅能触及内心
Every mental state is a link in the chain of consciousness.
If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
Understanding the mind requires understanding how symbols are grounded in perception and action.