The love for all living creatures is the most noble attribute of man.  
煤炭的真正成本不仅在于价格,还在于我们如何管理其后果。
我们钦佩的人的品质,如善良、慷慨、开放、诚实、理解和同情,在我们的系统中是失败的伴随物。而我们厌恶的那些特质,如精明、贪婪、占有欲、卑鄙、自我中心和自私,却是成功的特质。
 True courage is facing one's own weaknesses and striving to change.
Leadership is about empowering others to achieve what they thought was impossible.