解释：自己行为不端的人就难以要求别人行为端正，不孝顺父母的人也不能忠于君主。
化学是一门具有创造自己研究对象的非凡能力的科学。
We must listen to and engage with local communities to understand their needs and concerns.
Investors should avoid making decisions based on fear or greed.
The stranger is close to us, insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human, nature. He is far from us, insofar as these common features extend beyond him or us, and connect us only because they connect a great many people.