The only limits you have are the ones you set for yourself.

Sustainable development is not a slogan, but a social responsibility that enterprises must undertake.

哲学的任务不是解决问题，而是对问题本身提出质疑。

出自先秦《荀子·劝学》。定居一定要选择适当的邻里，交游一定要接近贤士。说明要加强道德修养，就应该注意周围环境。