You don't get another chance, life is no Nintendo game.

Science is about understanding the world, and medicine is about applying that understanding to help people.

当现有约束被改变，允许企业家从事新的生产活动形式时，经济增长就会发生。

如果耕种天地，不将天地整理好，这样就相当于是胡闹。耕种天地，一定要将土地平整翻新，然后再去播种。