The only limit to our realization of tomorrow is our doubts of today.

"The higher you go, the more your mistakes cost."

Three things are necessary for the salvation of man: to know what he ought to believe； to know what he ought to desire； and to know what he ought to do.

"When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become."

当今石油和天然气行业的领导力需要在短期需求和长期可持续性愿景之间取得平衡。