Stepchildren are at greater risk because evolutionary pressures have shaped parental psychology to favor genetic offspring.

The self is not so much a substance as a process, and it is the continual task of education to change the process, to develop its activities, and to guide it into channels of efficiency.

Without imperfection, you or I would not exist.

成功的关键在于持续学习和改进。

善良是最美的语言。

钢铁行业必须拥抱可持续性，才能在21世纪生存下去。