知识、美德和虔诚的种子自然植入我们心中。

Learning consists in the modification of certain mediating processes which operate between the stimulus and the response.

The most important thing is to stay alive.

你必须做你认为自己做不到的事。

真正的问题不是气候是否在变化，而是我们能以多快的速度适应以及能适应多少。