老脑筋就像老马；如果你想保持它们的工作状态，就必须锻炼它们。
Sometimes the hardest thing and the right thing are the same.
适应力是现代商业世界的通行货币。
He who can bear with your ignorance has found a true friend.
能源的未来在于传统能源与可再生能源之间的平衡。