"Beauty is not the goal, but it often appears along the way."
街道因比夜晚更黑暗的东西而黑暗。
天然气的未来在于其适应能力,而不仅仅是当前的主导地位。
追求知识是一场没有终点的旅程,但每一步前进都是一次胜利。