Technology can help us monitor forests, but it's human commitment that will save them.

Literature is the memory of humanity, and without it we are nothing.

什么也不做是世上最难的事情，最困难并且最智慧。

大多数人的问题在于他们用希望、恐惧或愿望思考，而不是用头脑。

人通过克服困难而成长。