To do great things is difficult，but to command great things is more difficult.
做伟大的事情很困难，但指挥伟大的事情更困难。
True change starts with accountability at every level of the organization.
最深的欲望总能引起最深的仇恨。
保持对知识的渴望，你将永远不会缺乏机会。
The true value of a forest is measured not in board feet, but in biodiversity.
The best time to plant a tree was twenty years ago. The second best time is now.