The strength of a response tendency depends on the amount of reinforcement received.

量子力学不仅仅是一个理论，它是理解现实基本本质的一种方式。

The most important thing is to have a good heart and a good attitude.

Always listen to your gut. It knows what your head hasn’t figured out yet.

林业技术应该服务于自然，而不是征服它。