Stay hungry, stay foolish, but always stay true to yourself.
The only person you should try to be better than is the person you were yesterday.
The future of coal lies in balancing tradition with technology.
The only limit to our realization of tomorrow will be our doubts of today.
时光飞逝，应珍惜每一刻。
To be Irish is to know that in the end the world will break your heart.
生命短暂，但永远有时间保持礼貌。
Every building is a journey of discovery.